Diagnostic Aids
WARNING: This page is about a different car, the 2000 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.
Check following items:
- For missing or damaged "O" rings at EVAP canister fuel vapor and purge line fittings.
- For cracks or punctures in EVAP canister.
- Damaged, missing or incorrectly installed fuel tank cap.
- For damaged or disconnected source vacuum line, EVAP purge line, vent hose or fuel tank vapor line.
- For faulty connections at Vehicle Control Module (VCM). Inspect harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection.
- For damaged harness. Inspect wiring harness to EVAP vent solenoid valve, EVAP purge solenoid valve, and fuel tank pressure sensor for intermittent open or short.