NO.6 CRANKS NORMALLY BUT WILL NOT START [L3 Turbo]
id0103b4801200
6 |
CRANKS NORMALLY BUT WILL NOT START |
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DESCRIPTION
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• Starter cranks engine at normal speed but engine will not run.
• Refer to symptom troubleshooting “NO.5 ENGINE STALLS” if this symptom appears after the engine stalls.
• Fuel is in tank.
• Battery is in normal condition.
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POSSIBLE CAUSE
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• Air leakage from intake-air system
• Open PCM ground or vehicle body ground
• Improper operation of electronic throttle control system
• EGR valve malfunction
• Low engine compression
• Engine overheating
• Vacuum leakage
• Ignition system malfunction
• Poor fuel quality
• PCV valve malfunction
• Intake-air system restriction
• Improper air/fuel mixture ratio control
• No signal from CKP sensor due to sensor, related wire or incorrect installation
• No signal from CMP sensor due to sensor, related wire or incorrect installation
• 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
• High pressure fuel pump malfunction
• Exhaust system or TWC malfunction
• Disconnected electrical connector
• Open or short in fuel pump (low-side) body and related harness
• Inadequate fuel pressure (high or low pressure side)
• Fuel pressure sensor (built-in fuel delivery pipe) or related circuit malfunction
• Relief valve malfunction (built-in fuel delivery pipe)
• Fuel line clogging or restriction
• Incorrect fuel injection timing
• Fuel pump resistor or control relay malfunction
• Fuel pump (low-side) mechanical malfunction
• Fuel leakage
• Fuel injector malfunction
• Purge solenoid valve malfunction
• Spark plug malfunction
• Ignition coil malfunction
• Improper valve timing
• Improper operation of variable valve timing control system
• Immobilizer system or related wiring harness malfunction
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Diagnostic procedure
STEP |
INSPECTION |
RESULTS |
ACTION |
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1
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Do any of the following conditions appear?
• Engine does not start completely.
• Immobilizer system DTC B10DA:62 is displayed.
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Yes
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Both conditions are appear:
• Go to Step 5.
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No
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Either or other condition appears:
• Go to the next step.
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2
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Does the engine stall after approx. 2 s from when it is started?
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Yes
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Go to the next step.
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No
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Retrieve the immobilizer system DTC using the M-MDS.
• If normal:
• If not:
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3
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Inspect if the coil antenna connector securely connected to the coil antenna.
Is the coil antenna connector installed securely?
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Yes
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Go to the next step.
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No
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Retighten the coil antenna connector, then repeat Step 2.
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4
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Does the security light illuminate?
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Yes
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Go to the next step.
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No
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Inspect the following:
• Vehicles with advanced keyless entry and push button start system:
• Vehicles without advanced keyless entry and push button start system:
Repair or replace the malfunctioning part according to the inspection results.
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5
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Retrieve the immobilizer system DTC using the M-MDS.
Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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Go to the next step.
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6
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Inspect for continuity between PCM terminals 1BD, 1BG, 1AZ, 1BH and ground.
Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the suspected wiring harness.
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7
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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?
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Yes
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Go to the next step.
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No
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Repair or replace the suspected wiring harness.
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8
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Switch the ignition to ON (engine off).
Access the VPWR PID using the M-MDS.
Is the VPWR PID value B+?
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Yes
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Go to the next step.
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No
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Repair or replace the suspected wiring harness.
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9
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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+?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness between coil antenna terminal D and fuse panel.
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10
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Inspect the following wiring harness and connectors:
• Vehicles with advanced keyless entry and push button start system:
• Vehicles without advanced keyless entry and push button start system:
Is there any malfunction (open or short circuit, terminal corrosion, etc.)?
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Yes
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Repair or replace the malfunctioning part according to the inspection results.
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No
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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.
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11
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Inspect for continuity between keyless control module terminal 2B (wiring harness-side) and body ground.
Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the suspected wiring harness.
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12
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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?
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Yes
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Go to the next step.
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No
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Repair or replace the suspected wiring harness.
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13
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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+?
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Yes
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Go to the next step.
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No
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Repair or replace the suspected wiring harness.
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14
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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.)?
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Yes
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Repair or replace the malfunctioning part according to the inspection results.
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No
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Go to the next step.
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15
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Inspect for the following:
• Fuel quality (proper octane, contamination, winter/summer blend)
• Intake-air system leakage and restriction
• Electrical connectors
• Fuses
• Poor connection for PCM ground and body ground
• Fuel leakage
• Vacuum leakage
Is there any malfunction?
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Yes
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Service if necessary.
• Repeat this step.
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No
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Go to the next step.
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16
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Switch the ignition to ON.
Retrieve any DTCs using the M-MDS.
Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [L3 Turbo].)
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No
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Go to the next step.
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17
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Access the ECT PID using the M-MDS.
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].)
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Yes
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Go to the next step.
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No
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The cause of this concern could be from the cooling system overheating.
• Perform the symptom troubleshooting “NO.17 COOLING SYSTEM CONCERNS-OVERHEATING”.
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18
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Does the engine start with throttle close?
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Yes
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Go to the next step.
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No
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Go to Step 24.
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19
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Will the engine start and run smoothly at part throttle?
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Yes
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Go to the next step.
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No
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Go to Step 22.
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20
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Perform the TP sweep inspection.
Does the electronic throttle control system work properly?
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Yes
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Visually inspect the throttle body (damage/scratching).
• If normal:
• If not:
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No
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Repair or replace the malfunctioning parts according to the inspection results.
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21
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Access the RPM PID using the M-MDS.
Is the RPM PID value indicating engine speed when the cranking engine.
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Yes
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Go to the next step.
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No
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Inspect the CKP sensor for following:
• Installation condition
• Damaged trigger wheel and camshaft
• Open or short circuit in wiring harnesses
Repair or replace the malfunctioning parts according to the inspection results.
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22
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Inspect CMP sensor for the following:
• Installation condition
• Damaged trigger wheel and camshaft
• Open or short circuit in wiring harnesses
Is there any malfunction?
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Yes
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Repair or replace the malfunctioning parts according to the inspection results.
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No
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Go to the next step.
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23
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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?
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Yes
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Inspect the following:
• Purge solenoid valve
• EVAP system
Repair or replace the malfunctioning parts according to the inspection results.
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No
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Go to the next step.
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24
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Inspect the engine condition while tapping the EGR valve housing.
Does the engine condition improve?
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Yes
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Replace the EGR valve.
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No
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Go to the next step.
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25
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Access the following PIDs using the M-MDS:
• 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].)
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Yes
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Go to the next step.
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No
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Inspect the suspected parts and related wiring harness.
• If normal:
• If not:
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26
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Inspect for restriction in the exhaust system and TWC.
Is there any restriction?
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Yes
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Repair or replace the malfunctioning parts according to the inspection results.
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No
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Go to the next step.
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27
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Perform the Spark Test.
Is a strong blue spark visible at each cylinder?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning parts according to the inspection results.
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28
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Access the FUEL_PRES PID using the M-MDS.
Crank the engine.
Does the FUEL_PRES PID value increase?
(See PCM INSPECTION [L3 Turbo].)
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Yes
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Go to Step 31.
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No
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Go to the next step.
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29
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Replace the high pressure fuel pump.
Access the FUEL_PRES PID using the M-MDS.
Crank the engine.
Does the FUEL_PRES PID value increase?
(See PCM INSPECTION [L3 Turbo].)
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Yes
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High-pressure fuel pump or spill valve control solenoid valve (built-in high pressure fuel pump or fuel pressure sensor) malfunction.
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No
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Relief valve or fuel pressure sensor malfunction.
• Replace the fuel delivery pipe.
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30
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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.
Is the fuel pressure within the specification?
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Yes
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Go to the next step.
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No
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Inspect for the following:
• Fuel line restriction
• Fuel filter clogging
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31
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Measure the compression pressure for each cylinder.
Does the starting system work properly?
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Yes
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Go to the next step.
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No
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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.
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32
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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?
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Yes
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Go to the next step.
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No
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Inspect the fuel injector wiring harnesses.
• If normal:
• If not:
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33
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Perform the Variable Valve Timing Control System Operation Inspection.
Does the variable valve timing control system work properly?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning parts according to the inspection results.
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34
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Inspect the PCV valve.
Is the PCV valve normal?
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Yes
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Replace the fuel injector.
If a malfunction remains:
• Repair or replace the malfunctioning part according to the inspection results.
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No
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Replace the PCV valve.
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35
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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.
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