Question about 2002 Kia Rio
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Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Posted on Apr 13, 2009
Put a new. Cylinder head on my kia had the rough idle.replaced every sensor.still the same.used my OBD2 blue tooth scan tool.with the torque app for my glaxie tab tablet run down the road at about 60 where the car ran great.had about 20 codes.kept driving till all the codes where gone.had to reset every five to ten mins.then pulled over turned my idle screw back to factory car idled fine with no check engine lights.basically I had to show it how to run again.
Posted on Jul 25, 2012
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Posted on Jan 02, 2017
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