Diagnostic Aids
WARNING: This page is about a different car, the 2002 Ford Pickup and 2002 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Enter this test only when all steps under QUICK TEST have been successfully completed and engine still does not start or if directed here from another test or chart. This test is only intended to diagnose:
- Bi-fuel relay module.
- Compuvalve.
- Harness circuits.
If vehicle is equipped with dual LPG tanks, check operation using both tanks.
NOTE:
During bi-fuel diagnostics, intermittent failures are possible. Perform wiggle test and tap lightly on relays during testing.