Strange 92 GM problem
HI, i just bought from my father a 1992 grand Marquis. It is in great shape, except for a problem with the mas air sensor. My engine is the 4.6 soch motor.
WHen i took possesion of it, the check engine light was on. I asked pops why and he said becuase of a problem with the mas air flow sensor. He opens the hood, to show me that it was disconnected. The car was running fine with it disconnected, which i thought was odd considering how important that thing is. So he turned the car off, popped the maf connector back on, and the check engine light went off. Now this is were the stuff gets interesting. I took it for a drive with it connected, and everytime i stoped it would sputter and then die. If i kept my foot on the gas it would stay on, going down the road was fine, but if i stopped it would die. This is all happening with the maf connected as it should be. Strangly with the maf connected, when it is about to die, there is no check engine light on??
So i pulled into a parking lot, turned off the car, unplugged the maf. Turned it back on and drove it home, with nary a problem. No sputtering, no dieing. Where as before, with it plugged in, it would sputter and die unless i held the brake down with one foot and on the gas with the other.(while at stoplights that is)
So what is causing this odd problem? Dad says i need to replace the maf sensor, which i can get pretty affordably. Is there anything else i need to check?
I just replaced the alternator, the water pump, powerstearing pump and stearing gear, belt tensioner, and tie rods. He has put in a new transmission, seals on the rear axel(rear axel service).
Off topic, who makes a good cold air intake for my engine? I think its the same motor as the mustangs before the 3v switch right? If the mustang one wont work, which should i use. Also my ford mechanic friend, says i need to get underdrive gears when im ready to do performance work on it. Any suggestions on those as well??