QDRHRSE
01-21-2006, 02:56 PM
Ever since my new motor went in we have not been able to get the truck to run right. It was done by a Ford Tech at a dealership. For some reason one bank of cylinders runs rich while the other is lean. I had the dearlerships head tech look at it for 2 hours and he can't find anything not working properly. Injectors are good, fuel system good, spark is good, grounds are good....the only other thing he said is that the O2 wiring might be crossed (meanting the left is plugged into the right and vise versa). Anybody have any ideas what could cause it to run bad with no distinguishable codes? It is actually blowing fuel through the exhaust. It's a new Ford motor, 2001 and up, going into a 2000. I even put the stock air meter back on and flashed the stock tune on it. Help!