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Won't Idle

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Old Aug 9, 2017 | 11:48 AM
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Default Won't Idle

Hi all I have a 1989 C4 Convertible Just bought 2 months ago
I feel got a good deal and knew going in there would be issues

Actualy the car has been running fine until 4 days ago. It started to idle high. Would stop at a light and if I pushed down on the gas peddle it would go back to normal idle. But now car starts runs but let go of the gas peddle and it shuts down Won't Idle at all. I'm no mechanic but been reading few things on here. Should I go and buy and install a new Throttle Position sensor and if I do is it just plug and play or would the new need adjustments?
Or what about the Idle Air Control Valve right under the TPS

Or just take it to a mechanic ?
Thanks
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Old Aug 9, 2017 | 10:03 PM
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Originally Posted by BillDurant
Or what about the Idle Air Control Valve right under the TPS
Yes, I'd check that. The IAC may be out of adjustment.
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Old Aug 9, 2017 | 11:49 PM
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Originally Posted by billschroeder5842
Yes, I'd check that. The IAC may be out of adjustment.
How would it suddenly fall out of adjustment unless it is faulty?
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