Timisawesomeish
New member
- Joined
- Feb 25, 2021
I apologize if there is already a post about this but I am new and I couldn't find one. I have a 1986 740t wagon that I am trying to get passing smog. has a brand new cat, o2, and coolant temp sensor. Symptoms are passes when engine is cold at 15mph but fails 25mph. With engine warmed up fails both as gross polluter. I also tried replacing the AMM with another 007 from a junk 240 which did nothing as well as a reman from Delphi (a10335). The reman made the car idle terribly and run super rich. Any ideas that could help me out here?
edit: forgot to include it is failing for CO and HC
edit: forgot to include it is failing for CO and HC