2002 Mitsubishi Lancer Repair Question
Topics covered: Check engine light, Engine, Muffler.
Mileage: No information provided.
Mileage: No information provided.
Asked on July 3, 2008
2002 Mitsubishi Lancer check engine light
Check engine light is on, dealer wants to replace catalytic converter for 1000. Went to muffler shop they say check engine light code is 421 which is no reason to replace converter, so they can not. What can I do to troubleshoot this.
Asked by dweedsport@tds.netAnswer
Replied on July 3, 2008
That's odd that muffler shop is telling you this, since a P0421 code is for Cat Converter below threshold. This is USUALLY caused by an internal failure to the cat. converter.