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Generally speaking a high idle is caused by a vacuum leak; in this case it could be that or a mis-adjusted or malfunctioning: TPS, MAP, MAF - the first step would be to use a code reader with "live data" function to see if these sensors are working correctly; and then (if they are) check for a vacuum leak in the system.
What else can I help you with?
Why does your 1997 kia sportage idle so high?
There are several things that can cause your 1997 Kia engine to idle too high. The most common cause is a malfunctioning fuel pressure regulator.
How do you adjust the idle on a 2001 Mercury Sable?
The idle is not adjustible. You may need to clean the throttle plate to improve the idle.
How do you adjust the idle speed of a 1997 jeep wrangler the idle is set to high?
You shouldn't have to, check for vacuum intake leaks
1997 Cadillac eldorado is idling to high what causes this?
Either your fuel is burning too rich or you have an idle censor out. new idle censor's are not expensive
What causes 1997 jeep wrangle 4 cylinder to idle to high?
Could be a vacuum leak
2002 Mercury Sable idle rough when the ac is on?
check fuse 22
What would cause a 1997 jeep 2.5 liter engine to idle high?
Look for an intake vacuum leak
What is the correct idle speed for 1996 dodge neon?
The correct idle speed is 1RPM x4.2-7.888
Where is the idle adjuster on a 1997 Camero?
its all computer controlled in the ecu there are so many things that can cause a low/high idle and if you cant diagnose it in depth take it in to a good shop
WHY DOES THE 1991 Mercedes Benz 500sl HAVE high idle?
How high is your idle? idle should be 800rpm good oil pressure is obtained at this idle
How do you raise the idle on your 1997 dodge van?
The idle is automatic. If the speed is not corect then you have to fix the problem with the idle motor.
Why would a 1998 Mercury Sable stall and idle rough?
check pcv hose elbow for vacuum leak.
