Engine Controls - Long Crank Time During Cold Restart

BULLETIN NUMBER:
IB00-01-S003

ISSUE DATE:
JULY 2000

GROUP:
ENGINE

2.2L ENGINE PROLONGED CRANK ON COLD RE-START

AFFECTED VEHICLES

All 1998 2000 Rodeo (UE) and Amigo (UA) models with 2.2L HEC engine

SERVICE INFORMATION

All 1998 - 2000 Rodeo (UE) and Amigo (UA) models with 2.2L HEC engine, has a software installed in the PCM which uses a time-out circuit to reduce emissions and fuel soak. If the vehicle is started cold, and shut down within 10 to 30 seconds after the initial start-up, the time-out software does not allow injection pulse for an extended period of time. On 1998 and 1999 models with 2.2L 4 cylinder HEC engines, the time-out period with no injection pulse can be up to 8 seconds. On 2000 models with 2.2L 4 cylinder HEC engines, the time-out period can be up to 5 seconds.

To confirm this condition, disconnect any injector connector and install an injector noid light tester across the connector and watch for an on/off pulse. When the injector pulse width is 0 ms, the injector noid light will not flash.

NOTE:
The injector pulse width is 0 ms after the startup time has been exceeded during cold restart.

It is imperative not to attempt any repairs for this condition and to verify the condition.