Jumpy Idle, help before i go to the dealer please
#1
Jumpy Idle, help before i go to the dealer please
My idle is around 600 when the car is in drive and sometimes it jumps up and down and makes my whole car shakes. it almost feels like a misfire but i know it isnt. I also know that it could be my Throttle Position Sensor, but my car isnt throwin any codes. Could my y pipe be be taking away back pressure and causes my idles drop? My dad wants to take my car to the shop, but i dont wanna spend all the money if it is a y pipe. So can a throttle position sensor be bad without throwing codes?
#3
Member who somehow became The President of The SE-L Club
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Clean the intake and the idle air control valve. If that doesn't stabalize your idle then I'd definately replace the TPS. Those issues you describe are very typicle of a TPS failure or just out of spec, yet functioning so your not 'yet' getting a code for it.
#4
Originally Posted by 99maxk2
My idle is around 600 when the car is in drive and sometimes it jumps up and down and makes my whole car shakes. it almost feels like a misfire but i know it isnt. I also know that it could be my Throttle Position Sensor, but my car isnt throwin any codes. Could my y pipe be be taking away back pressure and causes my idles drop? My dad wants to take my car to the shop, but i dont wanna spend all the money if it is a y pipe. So can a throttle position sensor be bad without throwing codes?
i think you should check the coils a know issue on our cars specially 99's also check IACV , fuel filter ,air filter,plugs and like you said TPS but check for the obvious first.
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