2001 Citroen Xsara Picasso High revs. very high at idle

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worriedowner
Fixes: 2
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Problem added: Mar 21, 2015 (5 years ago)
Hi. I am now frighten to drive my citroen picasso. It revs very high when stopped at lights. And sometimes drives like an automotive. Been to two garages. First garage changed idle control value twice. Second garage can find no fault code. No sure what to do. It is a petrol 1600

Car details
Car: Citroen Xsara Picasso
Model Year: 2001
Category: Running Rough, Starting & Power Loss

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1/4drive
Fixes: 1,862
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Mar 21, 2015 (5 years ago)
I'm sorry but I can't be much help.
This needs systematic testing by a decent mechanic,
which you clearly don't have!
Best guess is a fault in the throttle pedal sensor.
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whittingehame
Fixes: 12,407
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Mar 21, 2015 (5 years ago)
Could try cleaning throttle body in case of possible sticking ,
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worriedowner
Fixes: 2
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Mar 22, 2015 (5 years ago)
Hi it's had the throttle body cleaned and the butterfly bit returns normally.
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worriedowner
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Mar 24, 2015 (5 years ago)
Revs goats back to normal if you turn off engine and restart
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kellykorner
Fixes: 1
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Mar 26, 2015 (5 years ago)
any other ideas please its not the idlel control value, had a new one
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PaulLRayner
Fixes: 2
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May 16, 2015 (5 years ago)
It is very easy to put the Idle Stepper Motor back with the plunger partly depressed and I have found that this will cause the problem to continue. As it is easy for a home mechanic to do I suggest the you take it out, gently pull the plunger out, clean the inside of the housing with kitchen towel and put back. It is held in with 2 star headed screws. Also suggest replacing the MAP valve at the front of the housing (£12.50) very easy to do. It is the amount of Air that is being let into the engine that is causing the problem and it does not show up as a fault code on diagnostics.
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