engine code P0420 same as code 25?
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Driver School Candidate
Joined: Feb 2003
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From: Texas
engine code P0420 same as code 25?
I have a 1996 SC400. The check engine light and the trac off light came on. I had the code checked and it read P0420.
Catalyst System Efficiency Below Threshhold Bank 1
I had done a few searches and I believe this is the oxygen (o2) sensor but I am not sure. All I could find has really for the pre OBDII models. Has anyone had this problem? Was it fixed by replacing the O2 sensor, or am I going to have to get new cats?
Also, which bank is 1, driver sdie or passenger side?
Thanks,
Adam
Catalyst System Efficiency Below Threshhold Bank 1
I had done a few searches and I believe this is the oxygen (o2) sensor but I am not sure. All I could find has really for the pre OBDII models. Has anyone had this problem? Was it fixed by replacing the O2 sensor, or am I going to have to get new cats?
Also, which bank is 1, driver sdie or passenger side?
Thanks,
Adam
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nicos1
ES - 1st to 6th Gen (1990-2018)
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Oct 8, 2007 12:44 PM
