hi, im having some trouble getting a 91 RS 3.2L V6 to stay running.... It will start up and run for 3 seconds and cut off.. it gains oil pressure at start up and seems to have adequate fuel pressure.. the fuel pump has been replaced.. checked the fuel filter for flow.. replaced distibutor cap and rotor button.. replaced the plug wires.. pulled codes and only code i got was a 22 for the TPS.. replaced that today and its still doing the same thing... checked all vacume hoses.. checked the terminals on the coil for corrosion..

Is there a fuel pump reset switch(inertia switch ) and where should it be ?..
I dont have a gauge to check the fuel rail but i did the screwdriver test and had fuel to the rail..
fuel did come out but it didnt shoot to the hood like i excpected.. it kind of poured out..

the firing order is right .. if the injectors were crap would it even fire at all and run for 3 seconds??

..anyways.. im a backyard mechanic at best and i need some advice from some pros on this one.. i appreciate any help...

>robbie

 

Try to test your fuel pressure. You may have a bad regulator. Check your injectors for pulses. One bad injector on the 3.1 MPFI will kill the whole side its on. You will need a noid light or an L.E.D. test light to do it. And there is no inertia switch. Thats foord crap.
And last
Do you have an aftermarket alarm on it that has some kind of kill in it? I have seen them go bad so often and leave some one stranded.

 

thanx for the advice i'll give it a shot.. also.. would the IAC be causing any of the problem.. i pulled it and it doesnt look healthy...

 

Starts fine, runs for three seconds and dies.

Make sure, if you have it, the resistor key for the anti-theft or the theft system itself isn't at fault.

 

after it stalls a light in the dash comes on that says INFL REST it flashes five times .. anyone know what this is??

 

Inflatable Restaint aka air bag. Don't wory about that until its running. Computer might not have completed its test cycle and detecting a low voltage or something.

 

The IAC is what keeps the idle at the right speed, if it doesn't work the engine may stall or race; however, it shouldn't affect the operation of the engine at high RPM.