I went to my local Advance Auto Parts to have the CEL read that just came on. It has done this a couple of times before now on the 1995 2.2 motor transplanted into wife's 98 OBW. The last CEL read said the gas cap was bad or loose. So, instructed my wife to really crank the gas cap on tight. She says she has been doing so. So this time, I bought and installed a new gas cap thinking this will solve the problem.   However, a second code also presented itself, and said the coolant temperature se