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Location:
Melbourne
Registered:
August 2002
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 Reving Problem
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Tue, 06 August 2002 13:10
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I own a AE82 corolla (Carbie), when the car is in no gear and I press the accelerator pedel and release, the engine revs (say 2000rpm) but sticks on the 2000rpm for a few seconds then goes down slowley. It dosen't go down the second I release the accelerator pedel like a normal car would. But if I have the aircon on this problem dosen't occur the revs drop down normally. What could be the cause of this engine still reving(few seconds) after I release the accelerator pedel??
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Reving Problem
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Tue, 06 August 2002 14:34
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sticky throtte bearing, acc cable, goo inside the intake (pcv), gummed up carb jets.
get a can of 'carby cleaner' the $2 stuff, and just go NUTS on the carby and surrounds, with and without the engine running.
cheers
ed
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Location:
Tasmania
Registered:
May 2002
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Re: Reving Problem
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Tue, 06 August 2002 15:13
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Many engines have a device to deliberately slow the throttle closing. This reduces nitrogen oxides or something. Even efi cars have it. It looks like a daphram thing with a rod sticking out into the throttle linkage. Sort of like suspension for your throttle.
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Location:
Melbourne
Registered:
August 2002
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Re: Reving Problem
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Tue, 06 August 2002 22:28
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Thanks for that ed I'll try it and see how we go
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Location:
Melbourne
Registered:
August 2002
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Re: Reving Problem
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Tue, 06 August 2002 22:30
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Yeh Johnny true, but the thing is that it wasn't doing it before
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Location:
New Zealand
Registered:
May 2002
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Re: Reving Problem
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Wed, 07 August 2002 07:31
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this on 2TGEUs Jonny?
I've just fixed my throttle so i get 100% instead of 80%. It was as simple as flipping the cable holder 180deg and adjusting out the slack again 
BTW: what are the 2 air tubes on the diaghram for idle air bypass for?
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Location:
Canada
Registered:
August 2002
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Re: Reving Problem
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Wed, 07 August 2002 10:54
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Does your car have an A/C idle up diagphragm linked to the throttle?
When they get old they can spring a leak, causing symptoms like you describe. Ones that I have seen bump up the idle when there is no vacuum applied.
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