HOW TO CORRECT CHECK ENGINE CODE

2005 Jeep Laredo

Tiny

Chris Simmons

November, 14, 2011 AT 8:58 PM

Initial code indicated replace bank 1 rear O2 sensor. When replaced, new code indicated problem with cat converter and same O2 sensor. I was advised that there was a TSB about incorrect error codes and I then had computer "reflashed" at Jeep dealer. Jeep dealer then advised error codes indicated problem with cat plus replace 4 O2 sensors (must be Mopar!) Meineke replaced cat with "strong" aftermarket unit plus 4 Mopar O2 sensors. Error code now indicates "cat deficiency". Feels like I am going in circles!

FOUND 378 RELATED QUESTIONS

3 Answers

Tiny

hmac300

November, 14, 2011 AT 9:27 PM

Sounds likeyou may have alike a coolant leak cooling the converter down have it checked for that.

Tiny

Chris Simmons

November, 14, 2011 AT 9:30 PM

There is no apparent leak. A leak large enough to cool the cat would have to be pretty big wouldn't it?

Tiny

Jacobandnickolas

November, 14, 2011 AT 11:43 PM

Using a live scanner, check the O2 sensors output to see if they are within spec.

Please login or register to post a reply.

Code Read Retrieval/Clear Honda Civic
Code Read Retrieval/Clear Chevrolet Camaro
Code Read Retrieval/Clear
Read Codes Like a Pro
How to read codes Chevrolet Blazer