Quote:
Originally Posted by Fnred98
Replaced Coil Pack #4 and #5, this resolved the CEL and the car is running so much better.
1. Should i replace the other 4 coil packs ?
2. It seems like there is some hesitation which I believe could be a semi blocked Cat Converter. Will take some Temp Readings within the next few days to answer that questions. Has anyone here replaced there Cat with a Cat By Pass, which unit did you use and did the CEL come on?
Thanks for all your replies.
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You can also use a vacuum gauge to check for a restricted Cat Converter or restricted exhaust.
I am surprised at how many people don't have a vacuum test gauge in there tool box.
A very basic tool that can tell you many things about your engines condition.
