NO.2 CRANKS NORMALLY BUT DOES NOT START [MZ-CD 1.6]

id0103e4853600

2

Cranks normally but does not start
DESCRIPTION
•  Engine cranks at normal speed but engine does not start.
•  Engine cranks at normal speed but does not start and glow indicator lihgt is flashing.
POSSIBLE CAUSE
•  PCM DTC is detected.
•  Fuel tank fuel level low.
•  Air cleaner element restriction
•  Loose vacuum line(s)/vacuum connections
•  Loose intake-air system hose(s)/hose connections
•  Loose intake-air system tube(s)/tube connections
•  Coolant leakage
•  Oil leakage
•  Fuel leakage
•  Visibly damaged or worn parts
•  Loose or missing nuts or bolts
•  Incorrect or contaminated fuel in fuel tank
•  Electrical connector, wiring harness or component damaged
•  Loose installation Fuel gauge sender unit
•  Air ingress into the fuel lines
•  Water in fuel
•  CKP sensor or pulse wheel malfunction
•  CMP sensor or pulse wheel malfunction
•  Glow plug malfunction
•  Fuel injector malfunction
•  Fuel filter blocked.
•  Fuel lines damaged or blocked.
•  Erratic signal to PCM
―  Fuel pressure sensor signal malfunction
•  Fuel metering valve malfunction
•  Supply pump malfunction
•  Low cylinder compression
•  Incorrect valve timing
•  Broken or damaged timing belt or pulley/sprocket
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

RESULTS

ACTION
1
VERIFY PCM DTC
•  Perform the PCM DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
No
Go to the next step.
2
VISUALLY INSPECT RELATED PART CONDITION
•  Visually inspect the following:
Mechanical:
―  Fuel level
―  Air cleaner element
―  Vacuum line(s)/vacuum connections
―  Hose(s)/hose connections
―  Tube(s)/tube connections
―  Coolant leaks
―  Oil leaks
―  Fuel system leaks (Fuel filter, fuel supply line(s), fuel return line(s), high-pressure fuel supply line(s), fuel injectors, fuel rail, supply pump, fuel filter, fuel tank, fuel tank ventilation pipe, fuel tank filler pipe)
―  Visibly damaged or worn parts
―  Loose or missing nuts or bolts
―  Contaminated fuel
Electrical:
―  Fuse(s)
―  Relay(s)
―  Loose or corroded connector(s) (PCM, sensor(s), switch(es))
―  Damaged or worn PCM, switch(es) and/or sensor(s)
―  Wiring harness
―  Fuel gauge sender unit installation
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part according to the inspection results.
Repeat Step 2.
No
Go to the next step.
3
DETERMINE IF MALFUNCTION CAUSE IS AIR INGRESS IN FUEL LINE OR OTHER
•  Perform the Fuel Line Air Bleeding.
•  Verify the symptom.
•  Is the symptom solved?
Yes
Troubleshooting is completed.
(Air ingress into the fuel line.)
No
Go to the next step.
4
DETERMINE IF MALFUNCTION CAUSE IS WATER IN FUEL OR OTHER
•  Perform the fuel filter water draining.
•  Verify the symptom.
•  Is the symptom solved?
Yes
Troubleshooting is completed.
(Water into the fuel line.)
No
Go to the next step.
5
VISUALLY INSPECT CKP SENSOR AND PULSE WHEEL
•  Visually inspect the CKP sensor and teeth of the crankshaft pulley.
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part as necessary.
No
Go to the next step.
6
VISUALLY INSPECT CMP SENSOR AND PULSE WHEEL
•  Visually inspect the CMP sensor and teeth of the camshaft pulley.
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part as necessary.
No
Go to the next step.
7
INSPECT GLOW PLUG
•  Inspect the glow plug.
•  Is the glow plug normal?
Yes
Replace the malfunctioning part.
(See GLOW PLUG REMOVAL/INSTALLATION [MZ-CD 1.6].)
No
Go to the next step.
8
INSPECT FUEL INJECTOR
•  Inspect the fuel injector for each cylinder.
•  Are fuel injectors normal?
Yes
Go to the next step.
No
Replace the suspected fuel injector.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZ-CD 1.6].)
9
INSPECT FUEL LINE FOR BLOCKAGE
•  Inspect the fuel line for blockage.
•  Is there blockage detected?
Yes
Flush the fuel system through with clean fuel.
No
Go to the next step.
10
DETERMINE IF MALFUNCTION CAUSE IS SUPPLY PUMP/FUEL METERING VALVE OR OTHER
Caution
•  While performing this step, always operate the vehicle in a safe and lawful manner.
•  When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later.
•  Access the following PID using the M-MDS:
―  FRP
―  FRP_DSD
―  FUEL_V_DSD
•  Monitor the each PID while driving the vehicle.
•  Are all PIDs normal?
Yes
Go to the next step.
No
Inspect the fuel pressure sensor and related wiring harness.
(See FUEL PRESSURE SENSOR INSPECTION [MZ-CD 1.6].)
•  If there is malfunction, repair or replace malfunctioning part.
•  If there is no malfunction, replace the supply pump.
(See SUPPLY PUMP REMOVAL/INSTALLATION [MZ-CD 1.6].)
11
Verify test results.
•  If normal, return to the diagnostic index to service any additional symptoms.
(See SYMPTOM DIAGNOSTIC INDEX [MZ-CD 1.6].)
•  If the 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.