NO.4 HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK [MZR 2.0 DISI i-stop]

4	HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK
DESCRIPTION	• Starter cranks engine at normal speed but engine requires excessive cranking time before starting. • Battery is operating normally.
POSSIBLE CAUSE	Note • If the ignition is not switched off (to LOCK or ACC) after the engine stalls, and then an engine restart is attempted, the PCM corrects the difference between CKP sensor and CMP sensor signals caused by engine stalling, which may result in more time needed to restart the engine. • Poor fuel quality • Fuel leakage • Air leakage from intake-air system • Intake-air system restriction • Vacuum leakage • PCM DTC is stored. • Contamination in MAF sensor • Open circuit in MAF sensor ground circuit • Intermittent open circuit in PCM ground circuit • Improper operation of drive-by-wire control system • EGR valve malfunction • Purge solenoid valve malfunction • Erratic signal from CMP sensor ― Loose installation ― Damaged trigger wheel (camshaft) ― Open or short circuit in related wiring harness • Erratic signal from CKP sensor ― Loose installation ― Damaged trigger wheel (crankshaft pulley) ― Open or short circuit in related wiring harness • Erratic signal to PCM ― ECT sensor or related circuit malfunction ― MAF sensor or related circuit malfunction ― A/F sensor or related circuit malfunction ― HO2S or related circuit malfunction ― Improper air/fuel mixture ratio control • Exhaust system or TWC restriction • Spark plug malfunction • Erratic signal to ignition coils • Inadequate fuel pressure (high or low pressure side) ― Fuel pressure sensor malfunction ― High pressure fuel pump malfunction ― Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) ― Spill valve control solenoid valve malfunction (built-in high pressure fuel pump) ― Relief valve malfunction (built-in fuel delivery pipe) ― Fuel pump (low-side) resister or related circuit malfunction ― Fuel line restriction ― Fuel filter clogging ― Fuel pump unit malfunction • Incorrect fuel injection timing • Fuel injector malfunction • Low engine compression • Improper valve timing • Power drive relay malfunction • Power relay malfunction • Power relay ground malfunction • Open circuit in wiring harness between power drive relay terminal A and PCM terminal 1AL • Open circuit in wiring harness between power drive relay terminal C and power relay • Starting system malfunction • PCV valve malfunction • Injector driver (built-in PCM) malfunction
POSSIBLE CAUSE	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 [MZR 2.0 DISI i-stop].) (See AFTER SERVICE PRECAUTION [MZR 2.0 DISI i-stop].) 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.

HARD TO START/LONG CRANK/ERRATIC START/ERRATIC CRANK

DESCRIPTION

• Starter cranks engine at normal speed but engine requires excessive cranking time before starting.

• Battery is operating normally.

POSSIBLE CAUSE

Note

• If the ignition is not switched off (to LOCK or ACC) after the engine stalls, and then an engine restart is attempted, the PCM corrects the difference between CKP sensor and CMP sensor signals caused by engine stalling, which may result in more time needed to restart the engine.

• Poor fuel quality

• Fuel leakage

• Air leakage from intake-air system

• Intake-air system restriction

• Vacuum leakage

• PCM DTC is stored.

• Contamination in MAF sensor

• Open circuit in MAF sensor ground circuit

• Intermittent open circuit in PCM ground circuit

• Improper operation of drive-by-wire control system

• EGR valve malfunction

• Purge solenoid valve malfunction

• Erratic signal from CMP sensor

― Loose installation

― Damaged trigger wheel (camshaft)

― Open or short circuit in related wiring harness

• Erratic signal from CKP sensor

― Loose installation

― Damaged trigger wheel (crankshaft pulley)

― Open or short circuit in related wiring harness

• Erratic signal to PCM

― ECT sensor or related circuit malfunction

― MAF sensor or related circuit malfunction

― A/F sensor or related circuit malfunction

― HO2S or related circuit malfunction

― Improper air/fuel mixture ratio control

• Exhaust system or TWC restriction

• Spark plug malfunction

• Erratic signal to ignition coils

• Inadequate fuel pressure (high or low pressure side)

― Fuel pressure sensor malfunction

― High pressure fuel pump malfunction

― Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system)

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

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

― Fuel pump (low-side) resister or related circuit malfunction

― Fuel line restriction

― Fuel filter clogging

― Fuel pump unit malfunction

• Incorrect fuel injection timing

• Fuel injector malfunction

• Low engine compression

• Improper valve timing

• Power drive relay malfunction

• Power relay malfunction

• Power relay ground malfunction

• Open circuit in wiring harness between power drive relay terminal A and PCM terminal 1AL

• Open circuit in wiring harness between power drive relay terminal C and power relay

• Starting system malfunction

• PCV valve malfunction

• Injector driver (built-in PCM) malfunction

POSSIBLE CAUSE

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 [MZR 2.0 DISI i-stop].) (See AFTER SERVICE PRECAUTION [MZR 2.0 DISI i-stop].)

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	Inspect for the following: • Fuel quality (proper octane, contamination, winter/summer blend) • Fuel leakage • Intake-air system leakage or restriction • Vacuum leakage Is there any malfunction?	Yes	Service if necessary. • Repeat this step.
No	Go to the next step.
2	Connect the M-MDS to the DLC-2. Switch the ignition to ON (engine off). Retrieve any DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 2.0 DISI i-stop].)
No	Go to the next step.
3	Access the ECT PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) Is the ECT PID value less than 116 °C {241 °F} during driving?	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 [MZR 2.0 DISI i-stop].)
4	Inspect the MAF sensor for the following: • Contamination • MAF sensor terminal B voltage (ground circuit) Is there any malfunction?	Yes	Repair or replace the malfunctioning parts according to the inspection results.
No	Go to the next step.
5	Verify the PCM ground point condition. Is there any ground point looseness or lifting in the PCM?	Yes	Repair the ground point looseness and lifting.
No	Go to the next step.
6	Will the engine run smoothly at part throttle?	Yes	Go to the next step.
No	Go to Step 8.
7	Perform the TP sweep inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].) Does the drive-by-wire 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.
8	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 [MZR 2.0 DISI i-stop].)
No	Go to the next step.
9	Perform the Purge Control System Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].) Does the purge solenoid valve work properly?	Yes	Go to the next step.
No	Repair or replace the malfunctioning parts according to the inspection results.
10	Inspect the CMP sensor and CKP sensor for the following: • Installation condition (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) • Damaged trigger wheel and camshaft • Open or short circuit in related circuit Is there any malfunction?	Yes	Repair or replace the malfunctioning parts according to the inspection results.
No	Go to the next step.
11	Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) • ECT • LONGFT1 • MAF • O2S11 • O2S12 • SHTFT1 Do the PIDs indicate the correct values under the trouble condition? (See PCM INSPECTION [MZR 2.0 DISI i-stop].)	Yes	Go to the next step.
No	Repair or replace the malfunctioning parts according to the inspection results. • If the malfunction remains: ― Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”. (See INTERMITTENT CONCERN TROUBLESHOOTING [MZR 2.0 DISI i-stop].)
12	Inspect for restriction in the exhaust system and the TWC. Is there any restriction?	Yes	Repair or replace the malfunctioning parts according to the inspection results.
No	Go to the next step.
13	Perform the Spark Test. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].) 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.
14	Access the FUEL_PRES PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) Is the FUEL_PRES PID value within the specification? (See PCM INSPECTION [MZR 2.0 DISI i-stop].)	Yes	Go to Step 19.
No	Go to the next step.
15	Is the vehicle accelerate performance normally?	Yes	Go to the next step.
No	Go to Step 17.
16	Inspect the fuel pressure sensor. (See FUEL PRESSURE SENSOR INSPECTION [MZR 2.0 DISI i-stop].) Is there any malfunction?	Yes	Replace the fuel delivery pipe. (See FUEL INJECTOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
No	Go to Step 19.
17	Switch the ignition to off. Disconnect the high pressure fuel pump and PCM connectors. Inspect for continuity between high pressure fuel pump terminal A (wiring harness-side) and body ground. Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground. • If the malfunction remains: ― Replace the PCM. (Damage to driver in PCM) (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
No	Go to the next step.
18	Replace the high pressure fuel pump. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) Access the FUEL_PRES PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) Is the FUEL_PRES PID value within the specification? (See PCM INSPECTION [MZR 2.0 DISI i-stop].)	Yes	High pressure fuel pump or spill valve control solenoid valve (built-in high pressure pump) malfunction. • Symptom troubleshooting is completed. • Go to Step 26.
No	Relief valve (built-in fuel delivery pipe) malfunction. • Replace the fuel delivery pipe. (See FUEL INJECTOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
19	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 [MZR 2.0 DISI i-stop].) 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 there is a malfunction: • Repair or replace the malfunctioning parts according to the inspection results. ― If normal: • Replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
20	Perform the Fuel Injector Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].) Do the fuel injectors operate properly?	Yes	Go to the next step.
No	Repair or replace the malfunctioning parts according to the inspection results.
21	Measure the compression pressure for each cylinder. (See COMPRESSION INSPECTION [MZR 2.0 DISI i-stop].) 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.
22	Switch the ignition to start with the clutch pedal depressed (MTX)/selector lever in P or N position (ATX). Is a clicking sound from the power relay and power drive relay?	Yes	Go to Step 24.
No	Go to the next step.
23	Inspect the power relay and power drive relay. (See RELAY INSPECTION.) Is there any malfunction?	Yes	Replace the suspect relay.
No	Inspect the following wiring harness: • Between power drive relay and power relay • Between PCM terminal 1AL and power drive relay • Between power relay and ground Repair or replace the malfunctioning parts according to the inspection results.
24	Inspect the starting system. (See STARTER INSPECTION [MZR 2.0 DISI i-stop].) Does the starting system work properly?	Yes	Go to the next step.
No	Repair or replace the malfunctioning parts according to the inspection results.
25	Inspect the PCV valve. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION [MZR 2.0 DISI i-stop].) Is there any malfunction?	Yes	Replace the PCV valve. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)
No	Injector driver is malfunction. • Replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) If the problem remains, overhaul the engine.
26	Verify the test results. • If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZR 2.0 DISI i-stop].) • 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, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

STEP

INSPECTION

RESULTS

ACTION

Inspect for the following:

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

• Fuel leakage

• Intake-air system leakage or restriction

• Vacuum leakage

Is there any malfunction?

Yes

Service if necessary.

• Repeat this step.

Go to the next step.

Connect the M-MDS to the DLC-2.

Switch the ignition to ON (engine off).

Retrieve any DTCs using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].)

Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [MZR 2.0 DISI i-stop].)

Go to the next step.

Access the ECT PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].)

Is the ECT PID value less than 116 °C {241 °F} during driving?

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 [MZR 2.0 DISI i-stop].)

Inspect the MAF sensor for the following:

• Contamination

• MAF sensor terminal B voltage (ground circuit)

Is there any malfunction?

Yes

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

Go to the next step.

Verify the PCM ground point condition.

Is there any ground point looseness or lifting in the PCM?

Yes

Repair the ground point looseness and lifting.

Go to the next step.

Will the engine run smoothly at part throttle?

Yes

Go to the next step.

Go to Step 8.

Perform the TP sweep inspection.

(See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].)

Does the drive-by-wire 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.

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 [MZR 2.0 DISI i-stop].)

Go to the next step.

Perform the Purge Control System Inspection.

(See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].)

Does the purge solenoid valve 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 [MZR 2.0 DISI i-stop].)

(See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

• Damaged trigger wheel and camshaft

• Open or short circuit in related circuit

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 [MZR 2.0 DISI i-stop].)

• ECT

• LONGFT1

• MAF

• O2S11

• O2S12

• SHTFT1

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

(See PCM INSPECTION [MZR 2.0 DISI i-stop].)

Yes

Go to the next step.

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

• If the malfunction remains:

― Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”.

(See INTERMITTENT CONCERN TROUBLESHOOTING [MZR 2.0 DISI i-stop].)

Inspect for restriction in the exhaust system and the 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 [MZR 2.0 DISI i-stop].)

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 [MZR 2.0 DISI i-stop].)

Is the FUEL_PRES PID value within the specification?

(See PCM INSPECTION [MZR 2.0 DISI i-stop].)

Yes

Go to Step 19.

Go to the next step.

Is the vehicle accelerate performance normally?

Yes

Go to the next step.

Go to Step 17.

Inspect the fuel pressure sensor.

(See FUEL PRESSURE SENSOR INSPECTION [MZR 2.0 DISI i-stop].)

Is there any malfunction?

Yes

Replace the fuel delivery pipe.

(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

Go to Step 19.

Switch the ignition to off.

Disconnect the high pressure fuel pump and PCM connectors.

Inspect for continuity between high pressure fuel pump terminal A (wiring harness-side) and body ground.

Is there continuity?

Yes

Repair or replace the wiring harness for a possible short to ground.

• If the malfunction remains:

― Replace the PCM. (Damage to driver in PCM)

(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

Go to the next step.

Replace the high pressure fuel pump.

(See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

Access the FUEL_PRES PID using the M-MDS.

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].)

Is the FUEL_PRES PID value within the specification?

(See PCM INSPECTION [MZR 2.0 DISI i-stop].)

Yes

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

• Symptom troubleshooting is completed.

• Go to Step 26.

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

• Replace the fuel delivery pipe.

(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

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 [MZR 2.0 DISI i-stop].)

Is the fuel pressure within the specification?

Yes

Go to the next step.

Inspect for the following:

• Fuel line restriction

• Fuel filter clogging

― If there is a malfunction:

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

― If normal:

• Replace the fuel pump unit.

(See FUEL PUMP UNIT REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

Perform the Fuel Injector Operation Inspection.

(See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 2.0 DISI i-stop].)

Do the fuel injectors operate properly?

Yes

Go to the next step.

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

Measure the compression pressure for each cylinder.

(See COMPRESSION INSPECTION [MZR 2.0 DISI i-stop].)

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.

Switch the ignition to start with the clutch pedal depressed (MTX)/selector lever in P or N position (ATX).

Is a clicking sound from the power relay and power drive relay?

Yes

Go to Step 24.

Go to the next step.

Inspect the power relay and power drive relay.

(See RELAY INSPECTION.)

Is there any malfunction?

Yes

Replace the suspect relay.

Inspect the following wiring harness:

• Between power drive relay and power relay

• Between PCM terminal 1AL and power drive relay

• Between power relay and ground

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

Inspect the starting system.

(See STARTER INSPECTION [MZR 2.0 DISI i-stop].)

Does the starting system work properly?

Yes

Go to the next step.

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

Inspect the PCV valve.

(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION [MZR 2.0 DISI i-stop].)

Is there any malfunction?

Yes

Replace the PCV valve.

(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

Injector driver is malfunction.

• Replace the PCM.

(See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

If the problem remains, overhaul the engine.

Verify the test results.

• If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZR 2.0 DISI i-stop].)

• 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, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)