Posted by kornhaber on September 01, 2004 at 21:07:04:

In Reply to: erratic and surging throttle on 4.2L EFI RR Classic posted by Kornhaber on September 01, 2004 at 19:11:57:

follow up:
The electronic lead to the AIC motor was unplugged. Then after starting the truck, it idled at 3,000 RPMs and stayed there.