When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Just barely passed emmissions check. Running Rich (I think). Could it be the O2 sensor? No OBDI codes.
You could be going through what I am dealing with. I fail for high CO.
I) as a previous post said, when was the last tune-up, at least make sure your plugs are clean & gapped, also wires, Cap & rotor are in good shape.
2) the AIR system is pumping air into the exhaust manifold, the O2 sensor see's all that air (lean) and tells the ECM to make thinga richer
How many miles do you have on the O2 sensor? Do you know anyone who can do a scan for you on the engine? The scan would tell you where to look for your problem.
