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CEL comes on decelerate..?

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Old 05-01-2006, 03:56 PM
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90Mustangfan
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Default CEL comes on decelerate..?

Hey say im cursing down the road in 4th gears @ 2500rpm, if I just let off the gas and let it deaccelerate, the check engine light comes on when it gets around 1500 and below...what would cause the cel to come on? could it be smog related.
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Old 05-01-2006, 04:09 PM
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PRO50SC
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Default RE: CEL comes on decelerate..?


ORIGINAL: 90Mustangfan

Hey say im cursing down the road in 4th gears @ 2500rpm, if I just let off the gas and let it deaccelerate, the check engine light comes on when it gets around 1500 and below...what would cause the cel to come on? could it be smog related.
Last time mine did that is was a bad egr sensor. Have it scanned and see what it says.
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Old 05-01-2006, 04:14 PM
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PX429
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Default RE: CEL comes on decelerate..?

Do you have Cats?
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Old 05-01-2006, 04:22 PM
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Joel5.0
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Default RE: CEL comes on decelerate..?

Check the codes, follow the procedures in http://www.themustang-net.com/eec.shtml .... EGR, smog equipment, TPS, MAF...are among the possibilities.
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