Without being there, the only think I can think of is dealing with the ambient temp switch. IT tells the computer the coolant temp and from that, the computer adjusts fuel mixture. On a cold start, it could be running lean. Also, back to the compression. As steel heats up, it expands increasing compression. To confirm that isn't an issue, you may want to check it.
Sunday, November 3rd, 2013 AT 10:54 AM