× 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: 1988 Buick Failing Emissions Rich
Posted to Technical Discussion Forum on 9/10/2000

[...trimmed text...]

The cross counts do seem too high and I'm going to scope the Ignition system tomorrow for a misfire.

I put a new ECM on the car but am using the original PROM. This worries me.....Maybe the PROM is ... Login to read more.