Cheap and easy ones.
Electrical:
�· Shorted/open wiring
�· PCM
Check for loose or chafed wiring.
Induction System:
�· Inlet air leaks (unmetered air)
Check for hissing or ticking sound.
Fuel Concerns:
�· Poor fuel quality
Pour a bottle of HEET or gas stabilizer.
Base Engine:
�· Exhaust leaks (upstream or near HO2S)
Check for hissing or ticking sound.
