NO.5 ENGINE STALLS-AFTER START/AT IDLE [L3 Turbo]

5	ENGINE STALLS—AFTER START/AT IDLE
DESCRIPTION	• Engine stops unexpectedly at idle or after start or both.
POSSIBLE CAUSE	• A/C system improper operation • Air leakage from intake-air system • Purge solenoid valve malfunction • Improper operation of electronic throttle control system • EGR valve malfunction • Vacuum leakage • Engine overheating • Low engine compression • Ignition system malfunction • Poor fuel quality • PCV valve malfunction • Intake-air system restriction • Exhaust system and/or TWC restriction or clogging • Electrical connector disconnection • Open or short circuit in the fuel pump (low-side) body or related wiring harness • Fuel pump resister or related circuit malfunction • No battery power supply to PCM or poor ground • Inadequate fuel pressure (high or low pressure side) • Fuel pressure sensor (built-in fuel delivery pipe) or related circuit malfunction • Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) • Relief valve malfunction (built-in fuel delivery pipe) • Fuel pump (low-side) body mechanical malfunction • Fuel leakage • Fuel line restriction • Fuel filter clogging • Incorrect fuel injection timing • High pressure fuel pump malfunction • Fuel injector malfunction • Ignition coil malfunction • Improper air/fuel mixture ratio control • No signal from CKP sensor due to sensor, related wiring harness or wrong installation • Erratic signal from CMP sensor • A/F sensor, HO2S or related circuit malfunction • ECT sensor or related circuit malfunction • APP sensor or related circuit malfunction • MAF sensor (integrated in MAF/IAT sensor) or related circuit malfunction • Improper valve timing • Improper operation of variable valve timing control system • Immobilizer system and/or circuit malfunction Warning • The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: ― Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. ― Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE SERVICE PRECAUTION” and “AFTER SERVICE PRECAUTION” described in this manual. (See BEFORE SERVICE PRECAUTION [L3 Turbo].) (See AFTER SERVICE PRECAUTION [L3 Turbo].) Caution • Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.

ENGINE STALLS—AFTER START/AT IDLE

DESCRIPTION

• Engine stops unexpectedly at idle or after start or both.

POSSIBLE CAUSE

• A/C system improper operation

• Air leakage from intake-air system

• Purge solenoid valve malfunction

• Improper operation of electronic throttle control system

• EGR valve malfunction

• Vacuum leakage

• Engine overheating

• Low engine compression

• Ignition system malfunction

• Poor fuel quality

• PCV valve malfunction

• Intake-air system restriction

• Exhaust system and/or TWC restriction or clogging

• Electrical connector disconnection

• Open or short circuit in the fuel pump (low-side) body or related wiring harness

• Fuel pump resister or related circuit malfunction

• No battery power supply to PCM or poor ground

• Inadequate fuel pressure (high or low pressure side)

• Fuel pressure sensor (built-in fuel delivery pipe) or related circuit malfunction

• Spill valve control solenoid valve malfunction (built-in high pressure fuel pump)

• Relief valve malfunction (built-in fuel delivery pipe)

• Fuel pump (low-side) body mechanical malfunction

• Fuel leakage

• Fuel line restriction

• Fuel filter clogging

• Incorrect fuel injection timing

• High pressure fuel pump malfunction

• Fuel injector malfunction

• Ignition coil malfunction

• Improper air/fuel mixture ratio control

• No signal from CKP sensor due to sensor, related wiring harness or wrong installation

• Erratic signal from CMP sensor

• A/F sensor, HO2S or related circuit malfunction

• ECT sensor or related circuit malfunction

• APP sensor or related circuit malfunction

• MAF sensor (integrated in MAF/IAT sensor) or related circuit malfunction

• Improper valve timing

• Improper operation of variable valve timing control system

• Immobilizer system and/or circuit malfunction

Warning

• The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:

― Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.

― Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE SERVICE PRECAUTION” and “AFTER SERVICE PRECAUTION” described in this manual. (See BEFORE SERVICE PRECAUTION [L3 Turbo].) (See AFTER SERVICE PRECAUTION [L3 Turbo].)

Caution

• Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.

STEP	INSPECTION	RESULTS	ACTION
1	Do any of the following conditions appear? • Engine does not start completely. • Immobilizer system DTC B10DA:62 is displayed.	Yes	Both conditions are appear: • Go to Step 5.
No	Either or other condition appears: • Go to the next step.
2	Does the engine stall after approx. 2 s from when it is started?	Yes	Go to the next step.
No	Retrieve the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) • If normal: ― Go to Step 15. • If not: ― Go to the applicable DTC inspection. (See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) (See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)
3	Inspect if the coil antenna connector securely connected to the coil antenna. Is the coil antenna connector installed securely?	Yes	Go to the next step.
No	Retighten the coil antenna connector, then repeat Step 2.
4	Does the security light flash?	Yes	Go to the next step.
No	Inspect the following: • Vehicles with advanced keyless entry and push button start system: ― Instrument cluster (See INSTRUMENT CLUSTER INSPECTION.) ― Wiring harness between keyless control module terminal 2K and instrument cluster terminal 2B ― Wiring harness between keyless control module terminal 2L and instrument cluster terminal 2D • Vehicles without advanced keyless entry and push button start system: ― Instrument cluster (See INSTRUMENT CLUSTER INSPECTION.) ― Wiring harness between PCM terminal 1AM and instrument cluster terminal 2B ― Wiring harness between PCM terminal 1AI and instrument cluster terminal 2D Repair or replace the malfunctioning part according to the inspection results.
5	Retrieve the immobilizer system DTC using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) (See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].) (See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)
No	Go to the next step.
6	Inspect for continuity between PCM terminals 1BD, 1BG, 1AZ, 1BH and ground. Is there continuity?	Yes	Go to the next step.
No	Repair or replace the suspected wiring harness.
7	Switch the ignition to ON (engine off). Measure the voltage at the PCM terminal 1BD, 1BG, 1AZ, 1BH (wiring harness-side). Is the voltage below 1.0 V?	Yes	Go to the next step.
No	Repair or replace the suspected wiring harness.
8	Switch the ignition to ON (engine off). Access the VPWR PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) Is the VPWR PID value B+?	Yes	Go to the next step.
No	Repair or replace the suspected wiring harness.
9	Disconnect the coil antenna connector. Switch the ignition to ON (engine off). Measure the voltage at the coil antenna terminal D (wiring harness-side). Is the voltage B+?	Yes	Go to the next step.
No	Repair or replace the wiring harness between coil antenna terminal D and fuse panel.
10	Inspect the following wiring harness and connectors: • Vehicles with advanced keyless entry and push button start system: ― Between coil antenna terminal A and keyless control module terminal 2H ― Between coil antenna terminal B and keyless control module terminal 2G • Vehicles without advanced keyless entry and push button start system: ― Between coil antenna terminal A and instrument cluster terminal 2Q ― Between coil antenna terminal B and instrument cluster terminal 2M Is there any malfunction (open or short circuit, terminal corrosion, etc.)?	Yes	Repair or replace the malfunctioning part according to the inspection results.
No	Vehicles with advanced keyless entry and push button start system: • Go to the next step. Vehicles without advanced keyless entry and push button start system: • Go to Step 15.
11	Inspect for continuity between keyless control module terminal 2B (wiring harness-side) and body ground. Is there continuity?	Yes	Go to the next step.
No	Repair or replace the suspected wiring harness.
12	Switch the ignition to ON (engine off). Measure the voltage at the keyless control module terminal 1B, 3C and 4AA (wiring harness-side). Is the voltage below 1.0 V?	Yes	Go to the next step.
No	Repair or replace the suspected wiring harness.
13	Switch the ignition to ON (engine off). Measure the voltage at the keyless control module terminal 2A, 2C and 2E (wiring harness-side). Is the voltage B+?	Yes	Go to the next step.
No	Repair or replace the suspected wiring harness.
14	Inspect the following wiring harnesses and connectors. • Between keyless control module terminal 2L and PCM terminal 1AI • Between keyless control module terminal 2K and PCM terminal 1AM Is there any malfunction (open or short circuit, terminal corrosion, etc.)?	Yes	Repair or replace the malfunctioning part according to the inspection results.
No	Go to the next step.
15	Inspect for the following: • Fuel quality (proper octane, contamination, winter/summer blend) • Intake-air system leakage and restriction • Electrical connectors • Poor connection for PCM ground and body ground • Fuel leakage • Vacuum leakage Is there any malfunction?	Yes	Service if necessary. • Repeat this step.
No	Go to the next step.
16	Switch the ignition to ON. Retrieve any DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [L3 Turbo].)
No	Go to the next step.
17	Access the ECT PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) Verify that the ECT PID value is less than 116 °C {241 °F} during driving. Is the ECT PID value less than specified? (See PCM INSPECTION [L3 Turbo].)	Yes	Go to the next step.
No	The cause of this concern could be from the cooling system overheating. • Perform the symptom troubleshooting “NO.17 COOLING SYSTEM CONCERNS-OVERHEATING”. (See NO.17 COOLING SYSTEM CONCERNS-OVERHEATING [L3 Turbo].)
18	Switch the ignition to ON (engine off). Access the VPWR PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) Is the VPWR PID value B+?	Yes	Go to the next step.
No	Repair or replace the wiring harness between main relay terminal C and PCM terminal 1BE.
19	Note • Following test is for stall concerns with the A/C on. If other symptoms exist, go to the next step. Connect the pressure gauges to A/C low side and high side pressure lines. Turn the A/C on and measure low side and high side pressures. Are the pressures within the specifications? (See REFRIGERANT PRESSURE CHECK.)	Yes	Go to the next step.
No	If the A/C is always on: • Go to the symptom troubleshooting “NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY”. (See NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [L3 Turbo].) For other symptoms: • Inspect the following: ― Refrigerant charging amount ― Condenser fan operation • Repair or replace the malfunctioning part according to the inspection results.
20	Will the engine run smoothly at part throttle?	Yes	Go to the next step.
No	Go to Step 22.
21	Perform the TP sweep inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3 Turbo].) Does the electronic throttle control system work properly?	Yes	Visually inspect the throttle body (damage/scratching). • If normal: ― Go to the next step. • If not: ― Repair or replace the malfunctioning parts according to the inspection results.
No	Repair or replace the malfunctioning parts according to the inspection results.
22	Disconnect the vacuum hose between purge solenoid valve and intake manifold from the purge solenoid valve side. Plug the open end of the vacuum hose. Start the engine. Is the engine stall now eliminated?	Yes	Inspect the following: • Purge solenoid valve (See PURGE SOLENOID VALVE INSPECTION [L3 Turbo].) • EVAP system Repair or replace the malfunctioning parts according to the inspection results.
No	Go to the next step.
23	Inspect the engine condition while tapping the EGR valve housing. Does the engine condition improve?	Yes	Replace the EGR valve. (See EGR VALVE REMOVAL/INSTALLATION [L3 Turbo].)
No	Go to the next step.
24	Perform the Variable Valve Timing Control System Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3 Turbo].) Does the variable valve timing control system work properly?	Yes	Go to the next step.
No	Repair or replace the malfunctioning parts according to the inspection results.
25	Inspect the CMP sensor and CKP sensor for the following: • Installation condition (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [L3 Turbo].) (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [L3 Turbo].) • Damaged trigger wheel and camshaft • Open or short circuit in the wiring harnesses Is there any malfunction?	Yes	Repair or replace the malfunctioning parts according to the inspection results.
No	Go to the next step.
26	Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) • ECT • APP1 • APP2 • MAF • O2S11 • O2S12 • LONGFT1 • SHTFT1 Do the PID values indicate the correct values under the trouble condition? (See PCM INSPECTION [L3 Turbo].)	Yes	Go to the next step.
No	Inspect the suspected parts and related wiring harness. • If normal: ― Perform the “INTERMITTENT CONCERN TROUBLESHOOTING. (See INTERMITTENT CONCERN TROUBLESHOOTING [L3 Turbo].) • If not: ― Repair or replace the malfunctioning parts according to the inspection results.
27	Inspect for restriction in the exhaust system and TWC. Is there any restriction?	Yes	Repair or replace the malfunctioning parts according to the inspection results.
No	Go to the next step.
28	Perform the Spark Test. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3 Turbo].) Is a strong blue spark visible at each cylinder?	Yes	Go to the next step.
No	Repair or replace the malfunctioning parts according to the inspection results.
29	Access the FUEL_PRES PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) Is the FUEL_PRES PID value within the specification? (See PCM INSPECTION [L3 Turbo].)	Yes	Go to Step 31.
No	Go to the next step.
30	Replace the high pressure fuel pump. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [L3 Turbo].) Access the FUEL_PRES PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].) Is the FUEL_PRES PID value within the specified? (See PCM INSPECTION [L3 Turbo].)	Yes	High-pressure fuel pump or spill valve control solenoid valve (built-in high pressure fuel pump or fuel pressure sensor) malfunction.
No	Relief valve or fuel pressure sensor malfunction. • Replace the fuel delivery pipe. (See FUEL INJECTOR REMOVAL/INSTALLATION [L3 Turbo].)
31	Connect the fuel pressure gauge between the fuel pump and the high pressure fuel pump. Measure the fuel pressure line of the low pressure side. (See FUEL LINE PRESSURE INSPECTION [L3 Turbo].) Is the fuel pressure within the specification?	Yes	Go to the next step.
No	Inspect for the following: • Fuel line restriction • Fuel filter clogging ― If normal: • Replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [L3 Turbo].) ― If not: • Repair or replace the malfunctioning parts according to the inspection results.
32	Measure the compression pressure for each cylinder. (See COMPRESSION INSPECTION [L3 Turbo].) Does the starting system work properly?	Yes	Go to the next step.
No	Inspect for the following: • Damaged valve seat • Worn valve stem and valve guide • Worn or stuck piston ring • Worn piston, piston ring or cylinder • Improper valve timing Repair or replace the malfunctioning parts according to the inspection results.
33	Disconnect the fuel injector connectors. Connect the NOID light to the fuel injector harness-side terminals. Inspect the NOID light dim during cranking. Does the NOID light illuminate?	Yes	Go to the next step.
No	Inspect the fuel injector wiring harnesses. • If normal: ― Replace the PCM (injector driver circuit malfunction). (See PCM REMOVAL/INSTALLATION [L3 Turbo].) • If not: ― Repair or replace the suspected wiring harness.
34	Inspect the PCV valve. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION [L3 Turbo].) Is the PCV valve normal?	Yes	Replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [L3 Turbo].) If a malfunction remains: • Repair or replace the malfunctioning part according to the inspection results.
No	Replace the PCV valve. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION [L3 Turbo].)
35	Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. • If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis. ― If the vehicle is repaired, troubleshooting is completed. ― If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.

STEP

INSPECTION

RESULTS

ACTION

Do any of the following conditions appear?

• Engine does not start completely.

• Immobilizer system DTC B10DA:62 is displayed.

Yes

Both conditions are appear:

• Go to Step 5.

Either or other condition appears:

• Go to the next step.

Does the engine stall after approx. 2 s from when it is started?

Yes

Go to the next step.

Retrieve the immobilizer system DTC using the M-MDS.

(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

(See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

• If normal:

― Go to Step 15.

• If not:

― Go to the applicable DTC inspection.

(See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

(See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

Inspect if the coil antenna connector securely connected to the coil antenna.

Is the coil antenna connector installed securely?

Yes

Go to the next step.

Retighten the coil antenna connector, then repeat Step 2.

Does the security light flash?

Yes

Go to the next step.

Inspect the following:

• Vehicles with advanced keyless entry and push button start system:

― Instrument cluster

(See INSTRUMENT CLUSTER INSPECTION.)

― Wiring harness between keyless control module terminal 2K and instrument cluster terminal 2B

― Wiring harness between keyless control module terminal 2L and instrument cluster terminal 2D

• Vehicles without advanced keyless entry and push button start system:

― Instrument cluster

(See INSTRUMENT CLUSTER INSPECTION.)

― Wiring harness between PCM terminal 1AM and instrument cluster terminal 2B

― Wiring harness between PCM terminal 1AI and instrument cluster terminal 2D

Repair or replace the malfunctioning part according to the inspection results.

Retrieve the immobilizer system DTC using the M-MDS.

(See DTC INSPECTION [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

(See DTC INSPECTION [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)].)

(See DTC TABLE [IMMOBILIZER SYSTEM (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM)].)

Go to the next step.

Inspect for continuity between PCM terminals 1BD, 1BG, 1AZ, 1BH and ground.

Is there continuity?

Yes

Go to the next step.

Repair or replace the suspected wiring harness.

Switch the ignition to ON (engine off).

Measure the voltage at the PCM terminal 1BD, 1BG, 1AZ, 1BH (wiring harness-side).

Is the voltage below 1.0 V?

Yes

Go to the next step.

Repair or replace the suspected wiring harness.

Switch the ignition to ON (engine off).

Access the VPWR PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

Is the VPWR PID value B+?

Yes

Go to the next step.

Repair or replace the suspected wiring harness.

Disconnect the coil antenna connector.

Switch the ignition to ON (engine off).

Measure the voltage at the coil antenna terminal D (wiring harness-side).

Is the voltage B+?

Yes

Go to the next step.

Repair or replace the wiring harness between coil antenna terminal D and fuse panel.

Inspect the following wiring harness and connectors:

• Vehicles with advanced keyless entry and push button start system:

― Between coil antenna terminal A and keyless control module terminal 2H

― Between coil antenna terminal B and keyless control module terminal 2G

• Vehicles without advanced keyless entry and push button start system:

― Between coil antenna terminal A and instrument cluster terminal 2Q

― Between coil antenna terminal B and instrument cluster terminal 2M

Is there any malfunction (open or short circuit, terminal corrosion, etc.)?

Yes

Repair or replace the malfunctioning part according to the inspection results.

Vehicles with advanced keyless entry and push button start system:

• Go to the next step.

Vehicles without advanced keyless entry and push button start system:

• Go to Step 15.

Inspect for continuity between keyless control module terminal 2B (wiring harness-side) and body ground.

Is there continuity?

Yes

Go to the next step.

Repair or replace the suspected wiring harness.

Switch the ignition to ON (engine off).

Measure the voltage at the keyless control module terminal 1B, 3C and 4AA (wiring harness-side).

Is the voltage below 1.0 V?

Yes

Go to the next step.

Repair or replace the suspected wiring harness.

Switch the ignition to ON (engine off).

Measure the voltage at the keyless control module terminal 2A, 2C and 2E (wiring harness-side).

Is the voltage B+?

Yes

Go to the next step.

Repair or replace the suspected wiring harness.

Inspect the following wiring harnesses and connectors.

• Between keyless control module terminal 2L and PCM terminal 1AI

• Between keyless control module terminal 2K and PCM terminal 1AM

Is there any malfunction (open or short circuit, terminal corrosion, etc.)?

Yes

Repair or replace the malfunctioning part according to the inspection results.

Go to the next step.

Inspect for the following:

• Fuel quality (proper octane, contamination, winter/summer blend)

• Intake-air system leakage and restriction

• Electrical connectors

• Poor connection for PCM ground and body ground

• Fuel leakage

• Vacuum leakage

Is there any malfunction?

Yes

Service if necessary.

• Repeat this step.

Go to the next step.

Switch the ignition to ON.

Retrieve any DTCs using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [L3 Turbo].)

Go to the next step.

Access the ECT PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

Verify that the ECT PID value is less than 116 °C {241 °F} during driving.

Is the ECT PID value less than specified?

(See PCM INSPECTION [L3 Turbo].)

Yes

Go to the next step.

The cause of this concern could be from the cooling system overheating.

• Perform the symptom troubleshooting “NO.17 COOLING SYSTEM CONCERNS-OVERHEATING”.

(See NO.17 COOLING SYSTEM CONCERNS-OVERHEATING [L3 Turbo].)

Switch the ignition to ON (engine off).

Access the VPWR PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

Is the VPWR PID value B+?

Yes

Go to the next step.

Repair or replace the wiring harness between main relay terminal C and PCM terminal 1BE.

Note

• Following test is for stall concerns with the A/C on. If other symptoms exist, go to the next step.

Connect the pressure gauges to A/C low side and high side pressure lines.

Turn the A/C on and measure low side and high side pressures.

Are the pressures within the specifications?

(See REFRIGERANT PRESSURE CHECK.)

Yes

Go to the next step.

If the A/C is always on:

• Go to the symptom troubleshooting “NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY”.

(See NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [L3 Turbo].)

For other symptoms:

• Inspect the following:

― Refrigerant charging amount

― Condenser fan operation

• Repair or replace the malfunctioning part according to the inspection results.

Will the engine run smoothly at part throttle?

Yes

Go to the next step.

Go to Step 22.

Perform the TP sweep inspection.

(See ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3 Turbo].)

Does the electronic throttle control system work properly?

Yes

Visually inspect the throttle body (damage/scratching).

• If normal:

― Go to the next step.

• If not:

― Repair or replace the malfunctioning parts according to the inspection results.

Repair or replace the malfunctioning parts according to the inspection results.

Disconnect the vacuum hose between purge solenoid valve and intake manifold from the purge solenoid valve side.

Plug the open end of the vacuum hose.

Start the engine.

Is the engine stall now eliminated?

Yes

Inspect the following:

• Purge solenoid valve

(See PURGE SOLENOID VALVE INSPECTION [L3 Turbo].)

• EVAP system

Repair or replace the malfunctioning parts according to the inspection results.

Go to the next step.

Inspect the engine condition while tapping the EGR valve housing.

Does the engine condition improve?

Yes

Replace the EGR valve.

(See EGR VALVE REMOVAL/INSTALLATION [L3 Turbo].)

Go to the next step.

Perform the Variable Valve Timing Control System Operation Inspection.

(See ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3 Turbo].)

Does the variable valve timing control system work properly?

Yes

Go to the next step.

Repair or replace the malfunctioning parts according to the inspection results.

Inspect the CMP sensor and CKP sensor for the following:

• Installation condition

(See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [L3 Turbo].)

(See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [L3 Turbo].)

• Damaged trigger wheel and camshaft

• Open or short circuit in the wiring harnesses

Is there any malfunction?

Yes

Repair or replace the malfunctioning parts according to the inspection results.

Go to the next step.

Access the following PIDs using the M-MDS:

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

• ECT

• APP1

• APP2

• MAF

• O2S11

• O2S12

• LONGFT1

• SHTFT1

Do the PID values indicate the correct values under the trouble condition?

(See PCM INSPECTION [L3 Turbo].)

Yes

Go to the next step.

Inspect the suspected parts and related wiring harness.

• If normal:

― Perform the “INTERMITTENT CONCERN TROUBLESHOOTING.

(See INTERMITTENT CONCERN TROUBLESHOOTING [L3 Turbo].)

• If not:

― Repair or replace the malfunctioning parts according to the inspection results.

Inspect for restriction in the exhaust system and TWC.

Is there any restriction?

Yes

Repair or replace the malfunctioning parts according to the inspection results.

Go to the next step.

Perform the Spark Test.

(See ENGINE CONTROL SYSTEM OPERATION INSPECTION [L3 Turbo].)

Is a strong blue spark visible at each cylinder?

Yes

Go to the next step.

Repair or replace the malfunctioning parts according to the inspection results.

Access the FUEL_PRES PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

Is the FUEL_PRES PID value within the specification?

(See PCM INSPECTION [L3 Turbo].)

Yes

Go to Step 31.

Go to the next step.

Replace the high pressure fuel pump.

(See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [L3 Turbo].)

Access the FUEL_PRES PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [L3 Turbo].)

Is the FUEL_PRES PID value within the specified?

(See PCM INSPECTION [L3 Turbo].)

Yes

High-pressure fuel pump or spill valve control solenoid valve (built-in high pressure fuel pump or fuel pressure sensor) malfunction.

Relief valve or fuel pressure sensor malfunction.

• Replace the fuel delivery pipe.

(See FUEL INJECTOR REMOVAL/INSTALLATION [L3 Turbo].)

Connect the fuel pressure gauge between the fuel pump and the high pressure fuel pump.

Measure the fuel pressure line of the low pressure side.

(See FUEL LINE PRESSURE INSPECTION [L3 Turbo].)

Is the fuel pressure within the specification?

Yes

Go to the next step.

Inspect for the following:

• Fuel line restriction

• Fuel filter clogging

― If normal:

• Replace the fuel pump unit.

(See FUEL PUMP UNIT REMOVAL/INSTALLATION [L3 Turbo].)

― If not:

• Repair or replace the malfunctioning parts according to the inspection results.

Measure the compression pressure for each cylinder.

(See COMPRESSION INSPECTION [L3 Turbo].)

Does the starting system work properly?

Yes

Go to the next step.

Inspect for the following:

• Damaged valve seat

• Worn valve stem and valve guide

• Worn or stuck piston ring

• Worn piston, piston ring or cylinder

• Improper valve timing

Repair or replace the malfunctioning parts according to the inspection results.

Disconnect the fuel injector connectors.

Connect the NOID light to the fuel injector harness-side terminals.

Inspect the NOID light dim during cranking.

Does the NOID light illuminate?

Yes

Go to the next step.

Inspect the fuel injector wiring harnesses.

• If normal:

― Replace the PCM (injector driver circuit malfunction).

(See PCM REMOVAL/INSTALLATION [L3 Turbo].)

• If not:

― Repair or replace the suspected wiring harness.

Inspect the PCV valve.

(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION [L3 Turbo].)

Is the PCV valve normal?

Yes

Replace the fuel injector.

(See FUEL INJECTOR REMOVAL/INSTALLATION [L3 Turbo].)

If a malfunction remains:

• Repair or replace the malfunctioning part according to the inspection results.

Replace the PCV valve.

(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION [L3 Turbo].)

Verify test results.

• If normal, return to the diagnostic index to service any additional symptoms.

• If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis.

― If the vehicle is repaired, troubleshooting is completed.

― If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.