Question about Toyota Corolla
The engine check lite on, check code for problem and codes aa1,aa2,aa3 all possibilities?
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Can you tell me what
I also work for autozone, 5+ years, and these are not trouble codes. I would find another Autozone and have them re-read it. Trouble codes would look like this: P0300, or P1756. The codes you have are not correct. Also, they should take you inside, look up the code, and explain what they mean. Also. ask them to print them out.
Posted on Dec 29, 2010
one thing you can bet the house on ....if a nissan sets a cat converter code...it needs a cat converter...trust me on this.in the last 10 yrs. as nissan master tech i have seen no other cause!
Posted on Mar 18, 2011
More than likely the catalytic converter has failed. the computer looks at the downstream O2 sensor to determine if the cat is working. If it sees the downstream O2 starting to switch back and forth like the upstream O2 or read consistently higher than it should than it will flag the P0420 code.
Posted on Aug 31, 2011
A fault code is not located anywhere except in memory of the computer. A fault code indicates a problem exists int a system, a system contains many parts.
Posted on May 30, 2012
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