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Old 30 Dec 2010, 01:16 am
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Default 1995 honda accord idles up and down at stops?

1995 accord, just purchased and true miles are unknown, I would estimate around 170k. At random times when I am at the light the car will rev up to about 1800-1900rpms and then come down to normal and then it will continue doing this repeatedly. What is causing this?
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Old 30 Dec 2010, 01:31 am
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Faulty TPS -Throttle Positioning Sensor
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Old 30 Dec 2010, 01:46 am
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yeah it could be the TPS, but it could also be the EGR valve, or as simple as the timing belt/chain. It is an old car and more than likely it's due for replacement of the timing chain/belt.















Best thing is to have it looked at by a mechanic. Most shops will give you a free diagnostic and tell you the best solution.
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Old 30 Dec 2010, 02:01 am
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auxiliary air device is the problem. On the inlet manifold is a cylindrical piece of kit with 2 cross head screws, undo them and remove the cover. Start the engine. If you can feel air being drawn into the cylinder, then it will need to be replaced. Try pressing the top of the piston, and release it quickly, this may help get rid of any small particles of debris
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