My coworker has a 92 S10 Truck with the 4.3 with 153K miles on it. His engine runs at 1500-2000 rpms at idle.
He's replaced the TPS and even tried the ECM and chip from another 92 and it still does it.
His digital dash also blanks out at times or flickers. His odometer portion went out all together. It used to work by slapping the dash. :) He cleaned all the connectors. Is it toast??
Any suggestions on the idle problem? Where to look first?
LS