rob159

Hello, so I have an issue that I just can't seem to find the solution too. So my car idles and running way high, like idling at over 1000 rpm and cruises on the expressway at about 4000. Also the car when starting from a stop will stall if you give it too much gas. This problem is hit or miss some days it runs fine and other it's a pain to start. So the things I've done soon far include a complete ingnition systems with plugs and wires, a new crankshaft position sensor, and I redid the caps on the ecu. If you guys have any suggestions that would be super appreciated and I can answer any questions you need.

thank you,
Robert

AlaskanLS

Could be faulty MAF, IACV or TPS.

AlaskanLS

If you have just replace the MAF make sure your new MAF is working, test it with multi meter, make sure the honey comb inside the MAF housing is not dented or clogged. Next thing you move to throttle position sensor that can also cause the same symptoms what you have mentioned.