Wild IAC problem. This may happen to your IAC.

[Chris Taylor]

I was tuning on an 87 GN this weekend for a guy. I could not get the IAC calibrated and must have gone over the calibration procedure five times. The car would not idle. I remove the IAC to find that the plunger was not threaded on the shaft. It had come off of the IAC shaft. I had never seen this before. It looked OK, so I cleaned it with carburetor cleaner and placed a small amount of thread locker on the shaft and screwed it back on. I calibrated the IAC, set the TPS and every thing was good to go.

 

[crazygn]

i cant get mine low , 30's# and 50-60% . maybe i'll take it out and make sure that not it, could be .


thanks