NO.7 ENGINE STALLS-AFTER START/AT IDLE [MZR-CD (RF Turbo)]

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7

ENGINE STALLS‐AFTER START/AT IDLE
DESCRIPTION
•  Engine stops unexpectedly.
POSSIBLE CAUSE
•  Poor fuel quality
•  Intake-air system restriction or clogging
•  Engine overheating
•  A/C system improper operation
•  Immobilizer system (PATS) and/or circuit malfunction (if equipped)
•  PCM control relay malfunction
•  Glow system malfunction
•  Inadequate fuel pressure
•  Fuel pressure sensor related circuit malfunction
•  Suction control valve malfunction (built-in supply pump)
•  Fuel pressure limiter malfunction (built-in common rail)
•  Fuel leakage
•  Fuel line clogging or restriction
•  Fuel filter clogging or restriction
•  Incorrect fuel injection timing
•  Erratic signal from CKP sensor
•  Erratic signal from CMP sensor
•  Supply pump malfunction
•  Fuel injector malfunction
•  Low engine compression
•  Improper valve timing
•  Exhaust system and/or oxidation catalytic converter restriction or clogging
•  EGR system malfunction
•  ECT sensor or related circuit malfunction
•  Accelerator pedal positions (APP) sensor or related circuit malfunction
•  MAF/IAT sensor or related circuit malfunction
•  V-reference voltage supply 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 REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described in this manual.

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION
1
Note
•  The following test should be perform for vehicles with the immobilizer system. Go to Step 8 for vehicles without the immobilizer system.
Connect the M-MDS to the DLC-2.
Do the following conditions appear?
•  Engine is not completely started.
•  DTC P1260 is displayed.
Yes
Both conditions appear:
Go to Step 4.
No
Either or other condition appears:
Go to the next step.
2
Is the coil connector securely connected to coil?
Yes
Go to the next step.
No
Connect coil connector securely.
Return to Step 1.
3
Does the security light illuminate?
Yes
Go to the next step.
No
Inspect instrument cluster and wiring harness.
4
Connect the M-MDS to the DLC-2 and retrieve the DTCs.
DTC
B1213, B1342, B1600, B1601, B1602, B1681, B2103, B2431
Yes
Go to the appropriate DTC test.
(See DTC TABLE [MZR-CD (RF Turbo)].)
No
Advanced keyless entry system is not equipped:
Go to the next step.
Advanced keyless entry system is equipped:
Go to Step 7.
5
Inspect the following wiring harnesses and connectors.
•  Between coil terminal A and instrument cluster terminal 2Q
•  Between coil terminal B and instrument cluster terminal 2S
Is there any malfunction (open or short circuit, terminal corrosion, etc.)?
Yes
Repair or replace malfunctioning part.
No
Go to the next step.
6
Inspect the following wiring harnesses and connectors.
•  Between PCM 95 and instrument cluster terminal 1I
•  Between PCM terminal 87 and instrument cluster terminal 1K
Is there any malfunction (open or short circuit, terminal corrosion, etc.)?
Yes
Repair or replace malfunctioning part.
No
Go to Step 8.
7
Inspect the following wiring harnesses and connectors.
•  Between keyless CM terminal 3Y and coil A
•  Between keyless CM terminal 3AA and coil B
•  Between keyless CM terminal 3W and PCM 87
•  Between keyless CM terminal 3X and PCM 95
Is there any malfunction (open or short circuit, terminal corrosion, etc.)?
Yes
Repair or replace malfunctioning part.
No
Go to the next step.
8
Inspect the following:
•  Fuel quality (e.g.: include water contamination, winter/summer blend)
•  Fuel line/fuel filter clogging
•  Intake-air system restriction
Are all items normal?
Yes
Go to the next step.
No
Service if necessary.
Repeat Step 8.
9
Is the engine overheating?
Yes
Go to symptom troubleshooting “NO.17 COOLING SYSTEM CONCERNS-OVERHEATING [MZR-CD (RF-Turbo)]”.
No
Go to the next step.
10
Note
•  Ignore DTC P0122, P0123, P0222 or P0223 while performing this test.
Disconnect the APP sensor connector.
Measure the voltage at the APP sensor connector VREF terminal (terminal D and A) and GND with turn the engine switch to the ON position.
Specification
4.5—5.5 V
Is voltage normal?
Yes
Go to the next step.
No
Inspect PCM terminal 63 and 82 related circuit.
11
Connect the M-MDS to the DLC-2.
Turn the engine switch to the ON position.
Retrieve any DTCs.
Are any DTCs displayed?
Yes
DTC is displayed:
Go to the appropriate DTC test.
(See DTC TABLE [MZR-CD (RF Turbo)].)
Communication error message is displayed:
Inspect the following:
•  Open circuit between PCM control relay and PCM terminal 119 or 120
•  Open circuit PCM control relay and PCM terminal 105
•  PCM control relay stuck open
•  Open or poor ground circuit (PCM terminal 1, 2, 3, 114 or 117)
•  Poor connection to vehicle body ground
No
No DTC is displayed:
Go to the next step.
12
Does the engine start normally after warm-up?
Yes
Inspect the glow system operation.
(See RELAY INSPECTION.)
Replace any malfunctioning part if necessary.
If glow system is normal, go to the next step.
No
Go to the next step.
13
Is there any restriction in the exhaust system or oxidation catalytic converter?
Yes
Repair or replace if necessary.
No
Go to the next step.
14
Access the RPM PID.
Is the RPM PID indicating engine speed while cranking the engine?
Yes
Go to the next step.
No
Go to Step 19.
15
Note
•  The following test should be performed on the vehicles with ac A/C system. If the following test cannot be performed due to engine stalling, go to the next step.
•  Go to the next step for the vehicles without an A/C system.
Connect the pressure gauge to the A/C line.
Turn the blower and A/C switches on.
Is pressure within the specifications?
Yes
Go to the next step.
No
A/C is always on:
Go to the symptom troubleshooting “NO.26 A/C ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [MZR-CD (RF-Turbo)]”.
(See NO.26 A/C ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [MZR-CD (RF Turbo)].)
Other symptoms:
Inspect the following:
•  Refrigerant charging amount
•  Cooling fan operation
16
Inspect the APP sensor.
(See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [MZR-CD (RF Turbo)].)
Is the APP sensor normal?
Yes
Go to the next step.
No
Replace the accelerator pedal component.
17
Depress the accelerator pedal slightly.
Crank the engine.
Does the engine start now?
Yes
Inspect the idle speed.
(See ENGINE TUNE-UP [MZR-CD (RF Turbo)].)
No
Go to the next step.
18
Inspect the for fuel leakage from the fuel pipe.
Is any fuel leakage found on the fuel pipe?
Yes
Repair or replace if necessary.
No
Go to the next step.
19
Visually inspect the CKP sensor and the teeth of the pulse wheel.
Are the CKP sensor and the teeth of the pulse wheel normal?
Yes
Go to the next step.
No
Replace malfunctioning parts.
20
Measure the gap between the CKP sensor and the teeth of the pulse wheel.
Specification
1.5—2.5 mm {0.059—0.098 in}
Is the gap within the specification?
Yes
Go to the next step.
No
Adjust the CKP sensor position.
21
Visually inspect the CMP sensor and the teeth of the pulse wheel.
Are the CMP sensor and teeth of pulse wheel normal?
Yes
Inspect the following PIDs:
(See PCM INSPECTION [MZR-CD (RF Turbo)].)
•  ECT
•  IAT
•  MAF
•  RPM
If the PID value is not as specified, repair or replace malfunctioning parts.
If the PID value is normal, go to the next step.
No
Replace malfunctioning parts.
22
Inspect the fuel pressure sensor.
(See FUEL PRESSURE SENSOR INSPECTION [MZR-CD (RF Turbo)].)
Is the fuel pressure normal?
Yes
Go to the next step.
No
Replace the common rail.
23
Inspect suction control valve.
(See SUCTION CONTROL VALVE INSPECTION [MZR-CD (RF Turbo)].)
Is the suction control valve normal?
Yes
Go to the next step.
No
Replace the supply pump.
(See SUPPLY PUMP REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
24
Is the engine compression correct?
(See COMPRESSION INSPECTION [MZR-CD (RF Turbo)].)
Yes
Go to the next step.
No
Inspect 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
Service if necessary.
25
Inspect the fuel injector.
(See FUEL INJECTOR INSPECTION [MZR-CD (RF Turbo)].)
Is the fuel injector normal?
Yes
Go to the next step.
No
Repair or replace if necessary.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
26
Inspect the EGR system operation.
Is the EGR system operation normal?
Yes
Remove and inspect the supply pump and common rail.
No
Repair or replace malfunctioning parts according to the EGR system operation results.
27
Verify test results.
•  If normal, return to the diagnostic index to service any additional symptoms.
•  If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.
―  If the vehicle is repaired, troubleshooting completed.
―  If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if later calibration is available. Retest.