Hello, Vehicle belongs to good friend who is pulling his hair out--mine too. Vehicle is a very nice 89 Mustang. Car is equipped with nitrous but engine is entirely stock original. Catalysts have been removed. Problem is a rough idle and excessive HC ou...

FIX posted 10/12/1999

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