- Feb 16, 2013
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If this happens while letting the car idle in the garage, what I would do, is disconnect the exhaust after the headers. Let it idle just like you would before and see if you see a heat difference. I would highly recommend NOT driving it this way though. Just my way of diagnosing if its a clogged cat.
Am I going to need to place the car up on a rack to do this? I'm pretty sure the answer is yes. Just want to make sure as I'm a novice and am just getting into learning my dream car. Thanks for your time and assistance