Did I get shafted???
Last edited by 01T/A88IROC-Z; Jan 9, 2009 at 03:48 PM.
P.S. Still no pic on your original post.
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For the record I think my cat had that dent too. Maybe for clearance or something.
You can also get a laser temp thingie, cause the motor to go rich and see the temp of the cat go up - fuel makes the cat burn hotter.
Also, the cat will always be hotter than the pipe after it - not sure about the pipe before it, but would assume so as well. That's due to the PCM causing the fuel mixture to bounce lean/rich. The up stream O2 sensor watches for this fluctation and the down stream O2 sensor watches for it to be 'flat', signifying the cat is actually working. If the down stream o2 sensor notices it's fluctuating closely to the up stream, a code will be set.







