I have a o1 mirage es and i keep getting this p0421 check engine light i thought it was the cat so i replaced that and didnt work it has 120,000 miles on it i also heard there was a recall having something to do with that code any ideas or advice would be greatly appreciated
I have a o1 mirage es and i keep getting this p0421 check engine light i thought it was the cat so i replaced that and didnt work it has 120,000 miles on it i also heard there was a recall having something to do with that code any ideas or advice would be greatly appreciated
Alright so I got a P0421 when my car was scanned.
Definition: Catalyst efficiency low - bank 1.
Can someone help me troubleshoot my car?
1) I got my upstream O2 sensor replaced already and that didn't solve the problem.
2) My catalytic converter can't be the problem because I don't really...
Alright so I got a P0421 when my car was scanned.
Definition: Catalyst efficiency low - bank 1.
Can someone help me troubleshoot my car?
1) I got my upstream O2 sensor replaced already and that didn't solve the problem.
2) My catalytic converter can't be the problem because I don't really...