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Why Do I Have A CEL?

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Old 09-10-2004, 03:09 PM
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Default Why Do I Have A CEL?

Ive had a CEL on since I installed my used Apex'i dual World Sport exhaust. I failed my smog test due to it have a knock sensor. Does anybody know why it might do this? It makes a quiet "putt putt" sound while idling. Either way, my new exhaust will be ordered Monday or Tuesday.

Ryan
Old 09-10-2004, 03:57 PM
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Originally Posted by Ro_Ja Boy,Sep 10 2004, 04:09 PM
Ive had a CEL on since I installed my used Apex'i dual World Sport exhaust. I failed my smog test due to it have a knock sensor. Does anybody know why it might do this? It makes a quiet "putt putt" sound while idling. Either way, my new exhaust will be ordered Monday or Tuesday.

Ryan
- is that exhaust cat-back only??
- if it is, it SHOULD NOT effect anything (problem you're having) at all..
Old 09-10-2004, 04:11 PM
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Originally Posted by dut,Sep 10 2004, 03:57 PM
- is that exhaust cat-back only??
- if it is, it SHOULD NOT effect anything (problem you're having) at all..
Im not sure what you mean? Is it possibly caused by the person before me having a test pipe? When I installed it, it had a lot of carbon build-up as well?! Thanks for your time!

Ryan
Old 09-10-2004, 04:19 PM
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Originally Posted by Ro_Ja Boy,Sep 10 2004, 05:11 PM
Im not sure what you mean? Is it possibly caused by the person before me having a test pipe? When I installed it, it had a lot of carbon build-up as well?! Thanks for your time!

Ryan
- are YOU using the test pipe?
Old 09-10-2004, 04:29 PM
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Originally Posted by dut,Sep 10 2004, 04:19 PM
- are YOU using the test pipe?
I am not. I dont have one installed and never have before.
Old 09-10-2004, 04:46 PM
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Originally Posted by Ro_Ja Boy,Sep 10 2004, 05:29 PM
I am not. I dont have one installed and never have before.
- you should be fine.. I don't see how the exhaust is at fault...
Old 09-10-2004, 04:50 PM
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Reset you CEL and see if it comes back on. A cat back exhaust should have no effect on the engine unless it's totally clogged up with something not allowing exhaust flow.
Old 09-10-2004, 04:56 PM
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Originally Posted by hygiene boy,Sep 10 2004, 05:50 PM
Reset you CEL and see if it comes back on. A cat back exhaust should have no effect on the engine unless it's totally clogged up with something not allowing exhaust flow.
- like a bannana
Old 09-10-2004, 05:11 PM
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Originally Posted by hygiene boy,Sep 10 2004, 04:50 PM
Reset you CEL and see if it comes back on. A cat back exhaust should have no effect on the engine unless it's totally clogged up with something not allowing exhaust flow.
Any clue what else it could be? The CEL has been cleared many times. It really started RIGHT after I got the exhaust installed.
Old 09-10-2004, 05:21 PM
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Originally Posted by Ro_Ja Boy,Sep 10 2004, 06:11 PM
Any clue what else it could be? The CEL has been cleared many times. It really started RIGHT after I got the exhaust installed.
- check the code at autozone


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