idle problems. help!

Technical Topics specific to the 4 dr. Sedan body - NOT where you post pics/build specs of your car.
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By teal_dx
- Mon Feb 17, 2014 6:18 pm #342748 Is the idle bouncing up and down constantly? Just while the car is warming up? Did it just start one day or slowly get worse? Can you tell us more about your car and all modifications?

The more info you can give us about exactly what's happening, the more we'll be able to help you. :thumb:

By jefferydclark
- Mon Feb 17, 2014 6:33 pm #342749 bumping idle will be IACV, TPS or FITV most of the time. but as teal said, a little more info would be nice especially if the check engine light is on.

By optimuslc
- Mon Feb 17, 2014 6:40 pm #342750 Just happend today. It went down when it was about to warm up. Then it stabilized for awhile. I would rev it till it stabilized again. Then it would drop after. Help pls.

By optimuslc
- Mon Feb 17, 2014 6:43 pm #342751 Check engine is not on.

By jefferydclark
- Mon Feb 17, 2014 8:52 pm #342756 do you have a check engine light at all? some people remove the bulb to sell or pass emissions. just clarifying. I've seen an oxygen sensor cause those types of problems. if it runs fine on cold start then runs like crap, it'll be a sensor that is disabled in open loop.
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By Copepsy
- Mon Feb 17, 2014 11:32 pm #342763 well if he have carb engine check engine dosent even exist... So if u have carb it's vaacum. or steph engine on intake header
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