× 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: 2002 Pontiac Grand Am P0404
Posted to Technical Discussion Forum on 9/8/2011

[...trimmed text...]

I can't review it for lack of saving the data, but from memory desired was greater than actual in a proportional manner. The valve had to be commanded for it to start showing a differential. Obviousl... Login to read more.