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Old 01-20-2012, 06:51 PM   #1
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revs high between shifts

ok i redid my intake and it revs up to 3000 rpm every time i shift out of 3,4,5,6 i dont know whats wrong cause i cleaned my mass flow sensor and the intake it self but its still doing it so i dont know what to do any pointers on this would help out a lot thank you


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Old 01-20-2012, 07:19 PM   #2
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If you took off the IAC make sure it is installed in the correct direction, other then that it sounds like the TPS maybe took a crap
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Old 01-20-2012, 08:42 PM   #3
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i checked the tps today and it was fine nothing bended or anything
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Old 01-20-2012, 08:56 PM   #4
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you might try replacing the tps anyway because they are relatively cheap, 25ish, and I have head of some that test good but the problems go away with a new sensor
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Old 01-20-2012, 09:01 PM   #5
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yeah i think i will try that see if it works
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Old 01-21-2012, 10:38 AM   #6
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mine did that ..I unpluged the idle mechanism below the throttle body..it went away,,I guess I need to replace it.
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Old 01-21-2012, 12:29 PM   #7
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Quote:
Originally Posted by chefster View Post
mine did that ..I unpluged the idle mechanism below the throttle body..it went away,,I guess I need to replace it.
The IAC is not necessarily the culprit here the idle system on the focus uses the tps reading as part of the equation that is used to control the IAC so by unplugging the IAC you may have simply removed the source of the symptom of the problem.

So your problem could be a result of a failure of either part. best case serino here is to find someone who will let you steal either part from their car and see if one or the other corrects your problem.
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