unsteady rpm at idle

15

Asked by Jul 10, 2008 at 02:47 AM about the 1995 Chevrolet Camaro Base Convertible

Question type: Maintenance & Repair

i leave my place 4 work, n' as i start my engin, the rpm starts goin' up till 2, then down till 0.2 then up n' down n' up n' down...
one more thing, it wouldnt start easily... i have to try 3 or 4 times. sometimes even more, but then i give it a 5 min break, n' it starts at a BLINK.
anyone knows why ?

9 Answers

40

yout throttle positon censor is going out change it and it will return back to regular idle

2 out of 2 people think this is helpful.
1,025

might be tps, might be a vacuum leak, might be the crank sensor losing signal. Guessing can get expensive. Why not take it to a professional to have it diagnosed properly. Then, if you feel up to it you can repair your car right the first time.

1 out of 1 people think this is helpful.
9,765

TPS sensor is doing its job since the vehicle is not stalling. Iif the TPS went out, it would not let the vehicle hold an idle at all!!!!!!! Idle/Air control valve is your problem. Very common problem. It's only symptom is that which you have explained.

1 out of 1 people think this is helpful.
10

had the same problem.. it was faulty sparkplug wires.. make sure there all gettin spark.

1 out of 1 people think this is helpful.
125

get your tpu looked at (throttle postion unit) thats the problem

35

You could try cleaning your butterfly in your TB and see if tha twill work.

455

Actually the car would idle, It would use a MAP or MAF sensor 2 compensate for it.

35

check ur ignition coil it may be faulty

your throttle position sensor is gone,and yes it will keep running.

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