LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Exhaust Cutout

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Old 06-09-2003, 12:36 AM
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Location: Lower Mainland, BC ,Canada
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Exhaust Cutout

I opened mine up yesterday and ever since i did about 30 min from opening it up, and gunning it thru a tunnel the check engine light comes on and eventually after drivin slowly w/ less noise it goes off?
could this cause the check engine light to come on?
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Old 06-09-2003, 01:13 AM
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It shouldn't, I never had a problem like that with my cutout. Maybe it is something to do with OBDII?
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Old 06-09-2003, 01:52 AM
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no problems here, it may be detecting false knock. get an LT4 knock module, i'm getting one soon just in case.
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