× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: 1990 runs rough, exteme black smoke
Posted to Technical Discussion Forum on 2/28/2010

[...trimmed text...]

I'd be checking the engine wiring harness for abrasion damage. Also did this thing by chance pulse the injectors KOEO and did you hook up a scope (yes I know I said to put the fancy tools away) and l... Login to read more.