List Of 2002 Subaru Check Engine Light References. Your subaru’s monitoring system watches for escaping gasoline vapors due to a leak or missing gas cap, as well as exhaust emissions as they leave the engine and catalytic converter. The code was p0420 and the mechanic said since both of the o2 sensors were fine, he concluded that i need to replace the catalytic converter.
Suddenly the “check engine” light came on. Get a free detailed estimate for a check engine light in your area from kbb.com Whereas a steady check engine light may mean you merely need to tighten you gas cap next time you stop in order to reset the service.
