2002 Mitsubishi Lancer 4 cyl Front Wheel Drive Automatic 147000 miles
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.
Thursday, July 3rd, 2008 AT 7:55 AM