Originally posted by DennyW
Very possible a sensor is telling the computor it is to lean, which would drive it rich. But, you should get a code for that. Right Mike?
12489400 TOOL, DIAGNOSTIC TROUBLE CODE
every MEFI system that ive seen has a way to check for codes. this is what they say comes with the MWFI-3 kit. dont see anything on the MWFI-4. i know 2 people that has these systems on their cars in my brothers car club and they like them. come to think of it it sounds like the cold start senser could be out of range.