1991 Mustang GT Starts then dies immediately - Page 2 - Ford Mustang Forum
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Quote:
Originally Posted by chadwick108 View Post
I am kinda having the same problem...but i think that the mass air flow sensor is faulty...I am not having a problem with car not idling...but it idles at 2000 rpm. please help
Check your fuel pressure.. if it does not remain constant @ 38psi (under load, not at idle) or more then your pump is bad.
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Originally Posted by mespe View Post
Hi All,

First post here, I have a '91 Mustang GT. It has been running fine since I fixed her up. But my wife drove it the other day and now it stalls after starting it up. It used to run rough then stall, so I took off the EGR and noticed a piece of carbon preventing the valve from closing all the way. I said whola I found it, so I cleaned out the carbon and checked for proper closing and it appears to be A-OK. put it back on the car and now the car starts, then immediately stalls. As if the choke isin't on in the middle of the winter. Any suggestions?

Thanks a bunch.
Go back to basic's.

First make sure you have 5v present at all your basic sensors. Set your TPS voltage like someone posted earlier.

If the IAC didn't fix it take it back... lol

Clean your MASS, maybe even consider replacing it.
Set your TPS voltage.
Clean your sparks.
Start with your timing. Then reset your memory.
Then check your fuel pressure, under load & at idle.

If you start shot gunning parts you'll be there for a long time. What's your air filter look like?

The computer compensates for every little thing.
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Cool

Im having the same problem in my 1990 lx it starts thin automatically dies and i keep pumpin the gas pedal it will idol high but if i open the gas pedal all the way it just dies so have no clue what to do mine is acting really funny and i dont no what to do.
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