My wife had her heart set on the Grand Prix wide body for a long time. After some saving, and selling her truck to our son, she had the money to buy one. Figures it would be tax time, and the price of things seems to have doubled. We looked at several cars and finally found one we were interested in. Went to look at it and it was in our price range, actually less than we set out to spend. We made the deal with the owner and took the car home. The next day we started doing little repairs which quickly escalated, I found out that the Light for the SES indicator had been removed and there were a whole pile of codes. Now, after changing plugs and wires the idle wants to surge and sometimes the car will die. It has a remanufactured MAF sensor in it, and with my scanner hooked up I am getting no change in readings as the RPMs increase. The reading I believe is .240 and stays there. Will this cause my idle problem, and if so what is the recommended part to replace it with. I tried another reman MAF and nothing changed. Should I stick with OEM parts in this area. Also, I removed the IAC and cleaned it and the passages, now I am trying to find the relearn or adjustment procedures. Thank you in advance for any help or input into solving my dilemma. After getting the bugs worked out, I think this will be a great car. BTW, the car has right at 180k miles.