× 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: 1991 Buick Century 3.3L NOX Failure
Posted to Emissions Forum on 1/24/2007 20 Replies

Hi Robert,

I forgot to mention that his car/engine combo has no EGR valve. DIS ignition so timing is not adjustable and I do not have pre-cat NOX numbers to share.

Thanks, does that change anything you commented on?

Sounds like I should take a closer loo... Login to read more.

20 Replies Received (View Replies)