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Car Revs Up And Down

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Old 06-22-2004, 09:02 PM
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i reclaced the 02 sensor and now my car runs good except it revs up and down for a couple mins. can i adjust somthing on my power fc to make this stop
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Old 06-22-2004, 09:11 PM
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where did you get the new sensor from and how much did you pay bro
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Old 06-22-2004, 09:16 PM
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i had it off another motor
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Old 06-23-2004, 04:57 PM
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Your up and down revs have nothing to do with your new o2 sensor. Take a look at your throttle position sensor.
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Old 06-23-2004, 05:07 PM
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Originally Posted by 88gt' date='Jun 23 2004, 05:57 PM
Your up and down revs have nothing to do with your new o2 sensor. Take a look at your throttle position sensor.
I had this problem with my TII it was the TPS that needed adjusting



It caused my idle to flucuate up and down
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Old 06-23-2004, 05:47 PM
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If you have any problems though with your TPS, normally won't it throw a "check engine" light on?
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Old 06-23-2004, 11:16 PM
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cheak your map sensor...
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