Well, just went through emissions and failed pretty bad on NOx. 33% higher than the allowable level. HC was SUPER low at 2% allowed, CO very low as well at under 0.5% allowed. My thinking is that I am lean.
Plan is to replace all vacuum hoses (not sure why I didn't do that before, they just all looked fine.), back the timing down to 0 degrees, and possibly move the AFM a click or two towards rich. It certainly looks like I have some room to move in that direction. Based on HC and CO. It has a new catalytic converter so that should not be hurting anything.
If I fail again after that I'll start my own thread on it, haha.
EDIT: Went ahead and started a thread. Don't want to hijack your engine issues, Gnarly.
