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1990 LX Idle stuck at 2000 RPM

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Old 09-14-2008, 11:15 AM
  #1  
White90NotchLX
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Default 1990 LX Idle stuck at 2000 RPM

I just bought a 1990 LX and it was running perfect all day and last night i went around the block and the idle wouldn't go down past 2000 rpm. I even stopped because i thought it was too cold but nothin. if you know anything about this please let me know what might be the problem!! Thanks guys
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Old 09-14-2008, 01:07 PM
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93 LX FiveO
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try cleaning the maf sensor
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Old 09-14-2008, 01:09 PM
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USMC1775
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+1 and make sure your throttle cables arent binding, I had a friend toast his car because of a frayed cable
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Old 09-14-2008, 01:39 PM
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mjr46
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I think you guys mean the IAC motor not maf!!.....and what do you mean by to cold?? is the engine temp not getting up to operating temp?? if so it may be stuck in open loop operation if t-stat is stuck open?? try running a koer test and check for codes if none exist, look for vaccum leaks and clean Iac motor
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Old 09-14-2008, 03:21 PM
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White90NotchLX
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yea thanks we are gonna try to clean the IAC
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Old 09-14-2008, 04:53 PM
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93 LX FiveO
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the maf will make it idle funny too
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Old 09-14-2008, 06:02 PM
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mjr46
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Originally Posted by 93 LX FiveO
the maf will make it idle funny too
more often than not it is the least likely cause of idle issues but could cause it
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Old 09-14-2008, 10:05 PM
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dv3
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you could also try a search for a tread on here about reseting the idle
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Old 09-14-2008, 10:32 PM
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White90NotchLX
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Thanks guys but it was the IAC we bought a new one and it idles good and normal now thanks again everyone!!!!!
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