Greetings GM Techs,

I've inherited this problem child from two other techs. The car will interminently get a rough idle when coming to a stop. MIL may or may not come on (soft code 33). MAP voltage will climb above 4 volts, O2 sensor will drop to less than 10...

FIX posted 12/20/2000

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle