mike96
15+ Year Contributor
- 1,010
- 19
- May 6, 2008
-
Phoenix,
Arizona
Long story short (I will elaborate more later) my car won't pass emissions. The car is a 95 talon AWD so the state of AZ can't do the roller test only the exhaust sniff and it keeps failing for high hydrocarbons. I believe it is primarily due to the fact the my car wants to run in the 17:1 - 19:1 afr at idle. As soon as there is a load or I am driving it is right in the high 14:1 - 15:1 where it should be. I have done all the necessary tune up items and have boost leaked it to death and there is none. What else would cause it to only run lean at idle?