Diagnostic Aids

WARNING: This page is about a different car, the 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.

Check following:

Check PCM and system grounds. Ensure that all grounds are clean and secure.
Check fuel injectors. Perform FUEL INJECTOR BALANCE TEST under FUEL SYSTEM in SYSTEM & COMPONENT TESTING article.
Check spark plugs. Check insulators for cracks, carbon tracking or other damage. If a problem is found, replace faulty spark plug(s).
Check ignition coil(s). Check for cracks or carbon tracking. If a problem is found, replace faulty ignition coil.
Substitute a known-good ignition coil, or swap ignition coils cylinder-to-cylinder. If misfire follows coil, replace suspect coil.