System Description
WARNING: This page is about a different car, the 2002 Isuzu Trooper, 2002 Isuzu Rodeo Sport, 2002 Isuzu Rodeo, 2002 Isuzu Axiom, and 2002 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.
Fuel evaporative system operation is monitored by PCM. Engine vacuum is applied to system and monitored for leakage. PCM monitors vacuum in EVAP system with Fuel Vapor Pressure (FVP) sensor. Amount of engine vacuum is controlled by the EVAP Purge and Vent solenoid valves. If a specific amount of vacuum cannot be achieved or maintained, PCM will set DTC. Inspect above listed components for poor, loose or damage to terminal connections.