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What do you think it is???

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Old 02-10-2009, 06:15 PM
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Default What do you think it is???
Ok guys i put a ported TB on my car today and did the TB bypass mod at the same time.... well after i started the car up it idled high but eventually dropped back down to about 850RPM.... then i noticed the "Serivce Engine Soon" light cam on!

Does anyone know what could have caused this? Eveything is connected.......
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Old 02-10-2009, 06:18 PM
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some TBs that are ported too much have this problem. check the IAC (idle air control) valve. may need cleaning
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Old 02-10-2009, 06:24 PM
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alright ill check that
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