Next up, we mounted the diff and bolted everything up.
Put the remaining plastics on and put a new air filter on.
The headers were some how bent, causing the midpipe to veer off into the side of the gas tank. With the lack of an acetylene torch, we ground an angle into the midpipe's flange so the it would go parallel to the sides of the car.
Put the wheels on and drove her out of my garage!
Next I took it for a bath and a mini photo shoot:
I then began to slowly rip on it harder and harder. When nothing broke, I started dailying it. The first thing I noticed was some MAJOR misfiring, which didn't get better as the ECU "calibrated."
Here is a video of me running a stock 95 M3, during the first pull, you can hear the motor mis-firing all the way up till right before I shift. The next pull, it only misfires at the beginning of each gear and the car pulls hard the rest of the way.
http://www.youtube.com/watch?v=NIMMqaPhRN4 After scanning the codes, I found one about an intake air temp sensor. Researched and found out it was hidden underneath what I though was a homemade cork of sorts. So that's where the extra plug went!
Pulled the old sensor out to find this:
Pulled the IAT sensor off the M44 intake and plugged it in.
Right off the bat, the car idled smoother and I got excited. Took it out, and no cigar, it still misfired.
