No.6 Cranks Normally But Will Not Start: Notes

DESCRIPTION & POSSIBLE CAUSE

6	CRANKS NORMALLY BUT WILL NOT START
DESCRIPTION	Starter cranks engine at normal speed but engine will not run. Refer to symptom troubleshooting "NO.5 ENGINE STALLS-AFTER START/AT IDLE " if this symptom appears after engine stalls. Fuel is in tank. Battery is in normal condition.
POSSIBLE CAUSE	Because engine is started with accelerator pedal fully depressed, it goes into dechoke mode and fuel is not injected Engine overheating PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction ECT sensor No.1 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 Power is not supplied from main relay Power is not supplied from fuel injector relay and/or fuel pump relay Improper operation of drive-by-wire control system Purge solenoid valve malfunction No signal from MAF sensor Poor fuel quality Air leakage from intake-air system Intake-air system restriction Electrical connector disconnected No battery power supply to PCM or poor ground Fuse malfunction Fuel leakage Vacuum leakage No signal from CMP sensor Loose installation Damaged trigger wheel (exhaust camshaft) Open or short circuit in related wiring harness No signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Open or short circuit in the fuel pump (low-side) body or related wiring harness Fuel pressure sensor or related circuit 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-into high pressure fuel pump) Fuel line restriction Fuel filter clogged Fuel pump (low-side) body mechanical malfunction Incorrect fuel injection timing Fuel injector malfunction Improper operation of electric variable valve timing control system (PCM DTC is stored). Improper operation of hydraulic variable valve timing control system Low engine compression Improper intake valve timing Improper exhaust valve timing Ignition system malfunction Ignition coil malfunction Vapor occurs around fuel pump (fuel problem) Because vapor occurs in high pressure fuel pump, fuel injector cannot adjust fuel injection to correct amount Exhaust system and/or TWC restricted or clogged PCV valve malfunction Injector driver (built-into PCM) 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 ). (See AFTER SERVICE PRECAUTION ). 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.

CAUTION:

Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.

RELATED PIDs DESCRIPTION

Monitor item (Definition)	Unit/Condition	Condition/Specification (Reference)
ECT	°C, °F	Displays the ECT
ECT	V	ECT is 20°C {68°F}: approx. 3.10 V ECT is 40°C {104°F}: approx. 2.16 V ECT is 60°C {140°F}: approx. 1.40 V ECT is 80°C {176°F}: approx. 0.87 V ECT is 100°C {212°F}: approx. 0.54 V
APP1	%	Accelerator pedal released: approx. 16 % Accelerator pedal depressed: approx. 80 %
APP1	V	Accelerator pedal released: approx. 0.8 V Accelerator pedal depressed: approx. 4 V
APP2	%	Accelerator pedal released: approx. 8 % Accelerator pedal depressed: approx. 40 %
APP2	V	Accelerator pedal released: approx. 0.4 V Accelerator pedal depressed: approx. 2 V
MAF	g/sec	Displays the MAF
MAF	V	Switch the ignition to ON (MAF: 0.59 g/s {0.078 lb/min}): approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): approx. 0.86 V Racing (engine speed is 2,000 rpm ) (MAF: 4.73 g/s {0.626 lb/min}): approx. 1.07 V
VSS	KPH, MPH	Displays the vehicle speed
RPM	RPM	Displays the engine speed
O2S11	A	Idle (after warm up): approx. -39 μA Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 3.84 mA
O2S12	V	Idle (after warm up): 0-1.0 V Deceleration fuel cut (accelerator pedal released from engine speed of 4,000 rpm or more): approx. 0 V
SHRTFT1	%	Idle (after warm up): approx. 1.56 % Racing (engine speed is 2,000 rpm ): approx. -3.12 % Racing (engine speed is 4,000 rpm ): approx. -8.59 %
LONGFT1	%	Idle (after warm up): approx. -2.34 % Racing (engine speed is 2,000 rpm ): approx. -0.78 % Racing (engine speed is 4,000 rpm ): approx. -0.78 %
TP REL	%	Accelerator pedal released: approx. 12 % Accelerator pedal depressed: approx. 82 %
FUEL_PRES	KPa {MPa}, mBar {Bar}, psi, in H20	Displays the fuel pressure
FUEL_PRES	V	Fuel pressure is 3.0 MPa {31 kgf/cm ² , 435 psi}: approx. 0.92 V Fuel pressure is 4.8 MPa {49 kgf/cm ² , 696 psi}: approx. 1.17 V
LOAD	%	Idle (after warm up): approx. 16.07 % Racing (engine speed is 2,000 rpm ): approx. 14.51 % Racing (engine speed is 4,000 rpm ): approx. 21.17 %