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IAC was reading 155 at idle, when it would idle. MAP sensor is reading 3-4 lbs vacuum(or whatever it reads). Car thinks it is at full throttle at idle and is dumping fuel into the intake.. The IAC came down to 30 at idle, when it would idle, Map readings were all over the place.. MAP sensor gone bad?
Last edited by OIF1VET; August 14th, 2009, 03:40 PM.
Sorry to hear that Larry
I now the Feeling cause mines done for awhile also.
Craig
Semi Retired Street Racer
2012 Lava Red Mustang GT 5.0 MT82
GONE BUT NOT FORGOTEN
sigpic NBM `98 Formula M6 HdTp
1 of 1 Build Date 3/12/98
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He never said his tps reading were bad. I would start with a map sensor, after you check the connections. If thats not it then you probaly got more expensive problems.
Yeah, I am going to have it flatbedded home and change out the MAP sensor(eventually).. When I left the shop it wouldn't even start anymore.. turn it over and just a quick sputter. Probably done for the year.. Just don't have the time to work on it anytime soon..
car probly wont start due to plugs being fould out, change plugs and check tps, i know it dont show but if it sticks it will throw massive fuel in the car witch floods the system.... also to save a headach you may already know but change oil, to much fuel will start to dump in the oil and we dont need that.
If you don't want to flatbed it larry then hold the gas down all the way when you go to start it, this put the engine in a "clear flood" mode and it won't fire the injectors and it should allow the car to start. Then try replacing the MAP sensor in the parking lot, I have done it before and see if it helps.
Map sensor is going to read all over because its running like shit. It sounds ignition related to me.. Like Larry said.. pull a plug see what you got. Dont go replacing sensors if your unsure if its bad
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