Fitting an exhaust system with too large a diameter will also half your mileage.
example?
lol
Primary O2 Oxygen sensor usually throws a CEL if there is a problem with it, check it out first. Spark plug should be checked, air filter might be dirty... Service the car..
Last edited by HondaTurboVtec; 02-09-2012 at 09:46 PM.
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