I guess I'll look at oxygen sensors and fuel trim next. I'm not sure what "post the list" completely entails, it's a long list man. I came to the forum for direction. You haven't answered a question I've asked. Can you tell me what numbers there should be for fuel trim? Are these cars supposed to to Go through a relearn after engine replacement? I'm leaning towards this thing going into a forced rich condition. Any advice on looking at those numbers? How about What voltage should be at the wires on the oxygen sensor?

 

If I put forth some oxygen sensor values, do you think that would really help ?

My answer would be NO ! Just providing a bunch of numbers does nothing because we need to see the numbers coming from your vehicle.

Your scan tool should be able to provide that data stream info. Once you can pull it up, post them here where we can see what is going on.

What does the instruction manual for your scan tool say when requesting data stream info?