I have a 93 Stelth SOHC, about two months ago I started haveing problems with starting I had to keep turning the key to get it to start. I replaced the starter no change

A week ago I was driving and it just stoped in the middle of the road I had it towed to a dealer and they ran a diog on it and said it was the Mass air flow sensor They wanted 1,000 to replace and install. They also said it was a bad TPS and would replace it for 500.00 needless to say I did the work my self. But no change the car sill will not run

The problem is the car will start and idel around 500 RPM but as soon as you give it the least amount of gas it dies? What could it be???

If I use carb cleaner in the air intake while excelerating I can get the engine to run but if I drop off the excelerator it will die.

Replaced:
Fuel pump
TPS
Mass Air Flow Senser
cleaned Idel controler

 

OK I tried to get erro codes but I reset the computer and I can keep the car running long enough to get a erro code??????

I also pulled the ECU and nothong burnt and no smell????

 

How are the plugs and wires?? Is the distributor cap and rotor OK? Has it thrown the CEL? Is it getting a good spark when you turn it over? Is the fuel pressure regulator working properly?

Those are the things I would start with.

 

The wires are good when I had it ideling earlyer I pulled each plug one at a time a the engine deceled slightly so I would say they are good. Now I cnt get it to Idel??
I pulled the distributor cap and all is clean. no pitting or buildup
It through a CEL earler but I could not get it to give me any codes. so I reset it and now I cnt get it to run any longer than a few sec 3-5 and it will not through a code. When I get a reading it just keeps pegging out now which means no problem with the ECU. Once agin it would not read with a CEL but now no problem but no CEL but still wont run.
Pulled the return line from the FPR and got fuel out
And now I am having problems with starting again?

any other suggestions???????
Sure could use the help thanks

 

Actually, just pegging the meter indicates ECU failure. If the ECU was in a normal state, you would get steady needle deflections.

scroll down for the list of ECU codes.

 

Thats what I ment it pegs the doeps pegs and drops.......

 

Have you done an Ohm check on the IAC (idle air controller)?

 

No but I did pull it and cleaned it off and it ideled better? until I rest the ECU?

 

This might sound like a long shot, but is your alternator working up to spec?? I know its hard to check now without it running, but...

 

Ok I need helpo with how the fuel system works

If I hotwire the fuel pump it will run

What would cause this?

MFI?
ECM?