Rough when cold, TFI?
My EA MPI has developed a problem overnight. On a cold start, she will run rough. It sounds like she is missing, and can barely hold idle. At higher rpm, there is still a miss. No abnormal smoke from zorst.
Once it reaches operating temp, within a matter of seconds, it will change note and begin running perfectly. This happens on both LPG and ULP.
I have checked all leads, plugs, Cap & rotor, Timing, ECU self test... no problems.
Once the car is warm, there is no power loss at all, runs perfect.
I doubt it's sensor related because it runs the same on LPG. I have a spare ECU and I might put that in to see if there are changes.
Could the TFI be causing this problem? Any other Ideas?
CAUTION: Slippery When BOOSTING!