Pulsing Idle Disappears when Idle Air Control Valve is Disconnected

2knob · 04-20-2008, 05:01 PM

I haven't had a chance to do my book-learning yet, but the PFC AWS was less than 2000 RPM, didn't think 3000 was normal for the stock computer.

The throttle cable and cruise control cables have slack, dashpot looks good, and I haven't checked the wax rod/fast idle cam assembly, but don't expect them to be a problem.

I fully closed the Air Adjusting Screw and it's idling very nicely at around 840 RPM, adjusting for electrical load, forgot to check A/C. Shouldn't this, for all intents and purposes, completely rule out a vacuum leak?

Thanks..

04-20-2008, 05:01 PM	#14
2knob The Newbie Join Date: Feb 2008 Location: Bay Area, CA Posts: 18 Rep Power: 0	I haven't had a chance to do my book-learning yet, but the PFC AWS was less than 2000 RPM, didn't think 3000 was normal for the stock computer. The throttle cable and cruise control cables have slack, dashpot looks good, and I haven't checked the wax rod/fast idle cam assembly, but don't expect them to be a problem. I fully closed the Air Adjusting Screw and it's idling very nicely at around 840 RPM, adjusting for electrical load, forgot to check A/C. Shouldn't this, for all intents and purposes, completely rule out a vacuum leak? Thanks..