Originally posted by Tour4reak:
so driving around with that code isnt a problem if you dont have emissions.. or can it cause damage to the engine?
Depends on what the reason(s) is/are for the code.
�· Malfunctioning ECT/CHT
�· High fuel pressure
�· Damaged exhaust manifold
�· Cylinder misfiring
�· HO2S wiring concerns (shorted or chafed, bent pins, etc.)
�· Damaged exhaust system pipe
�· Damaged muffler/tailpipe assembly
�· Retarded spark timing
Damaged Catalytic Converter:
�· Use of leaded fuel
�· Oil contamination/consumption
�· Silicone contamination (sealants/cleaners)
If it is from the first 8, then it could cause damage to the engine. If it is because of a damaged precatalytic converter, then, no, it shouldn't cause problems to the engine (unless the precats get plugged).
Of course, if you have a Check Engine Light on, you don't know if it is only for the P0420/P0430 or if there are other codes too unless you scan it on a regular basis (maybe everyday and having that yellow Check Engine Light on is distracting and annoying).
Last edited by Tony2005; 06/07/06 03:05 AM.
