Test Description

WARNING: This page is about a different car, the 2002 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedures.

3

This step determines if PCM is able to control EVAP purge solenoid valve.

4

This step determines if DTC will set under conditions present when DTC was originally stored. If DTC does not set, problem is intermittent.

5

This step checks for a grounded EVAP purge solenoid driver circuit, a faulty EVAP vacuum switch or a leaking EVAP purge solenoid valve.