my engine light came on

Asked by GuruDDD3L2 Sep 17, 2023 at 11:02 AM about the 2005 Toyota Matrix AWD

Question type: Maintenance & Repair

my RPM and Engine light started blinking then the engine light stayed on ,a
few weeks ago l place my safe driver magnet over RPM panel could that have
anything to do with it?l had it at auto advance and te code said P0420,l am
afraid to drive to get it looked

1 Answer
310,165

Gene answered about a year ago

P0420 is a catalyst inefficiency code, usually that means the catalyst is failing but you could also have something happening with fuel trim. Yes it need to got to your favorite shop and get checked. Driving short distances should be fine but don't take a trip with it.

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