Engine Cranks, But Will Not Run

Diagnostic Chart:

Wiring Diagram:

DESCRIPTION

This table assumes that battery condition and engine cranking speed are OK. If not, refer to Engine Electrical for diagnosis. Also, make sure that there is adequate fuel in the tank.

DIAGNOSTIC AIDS

^ An Exhaust Gas Recirculation (EGR) valve sticking open can cause a low air/fuel ratio during cranking.

^ Unless the engine enters Clear Flood at the first indication of a flooding condition, a no start may result.

^ Check the duct work between the Mass Air Flow (MAF) sensor and the throttle body for air leaks.

^ A malfunctioning MAF sensor may cause a no start or a stall after start. If this is suspected, disconnect the MAF sensor. The PCM will default to speed density (MAP, IAT, RPM) to calculate load and air flow. If this corrects the condition and the connections are OK, replace the MAF sensor.

If the steps above check OK, refer to Symptoms.

TEST DESCRIPTION

Number(s) below refer to step numbers on the diagnostic table.

12. If no RPM was indicated on the scan tool during cranking, the power and ground to the distributor from the PCM are both OK, and DTC P1371-DI Low Resolution Circuit is not set, Replace the PCM.