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high idle when clutch engaged?

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Old Oct 1, 2014 | 09:31 PM
  #1  
89formyoula's Avatar
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Car: 89 formula
Engine: bolt on 305 tpi
Transmission: 700r
Axle/Gears: 342 posi
high idle when clutch engaged?

I have a 91 firebird...305 TBI 5 speed....every time I push the clutch in or just pop the car out of gear the idle will shoot up to 1500 rpms..but only while driving...when I stop the idle slowly goes down...I've only replaced the tps & it didn't change a thing...any help would be greatly appreciated
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Old Oct 1, 2014 | 10:59 PM
  #2  
Schurkey's Avatar
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Re: high idle when clutch engaged?

Originally Posted by 89formyoula
I have a 91 firebird...305 TBI 5 speed....every time I push the clutch in or just pop the car out of gear the idle will shoot up to 1500 rpms..but only while driving...when I stop the idle slowly goes down...I've only replaced the tps & it didn't change a thing...any help would be greatly appreciated
High idle when clutch engaged...or disengaged? Sounds like you're complaining of high idle when clutch is DIS-engaged.

Connect a scan tool. See what the commanded idle speed is, and compare to actual idle speed.
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