2000 GTP supercharged

[Timmy]

Hi everyone, my name is Timmy and I am new to the forum, I am desp need of help. I am working on a 2000 GTP with running issues. I went to start the car with no prior problems and it ran for only a moment and died.I put a fuel press guage on it and it read 42psi upon turning key on not running, then when I started it the press went to 10psi and died and went back up to 42psi. After thinking about it I changed the pump, filter and relays (not exactly cheap), only for the car to do the same thing. I would pull my hair out if I had any lol. Anyway I started it back up and held my hand on the air intake and it would stay running, so I proceeded to check for vac leaks and found none, not one, grrrr. So I tried to spray ether in the intake and it would stay running, Now I am at a loss, can anyone help please.

 

[Scottydoggs]

try this out.

 

[Fivefingerdeathpunch]

You could also try the unplugging the MAF sensor.

 

[Timmy]

changed the relays 14 and 15, still doing the same thing, its driving me nuts lol
also unpluged maf and tps seaperately and together
dont remember if i mentioned but itn would also stay running if I continualy pumped the throttle, when I quit it quit

 

[Scottydoggs]

re look at the pic up there, you bend a tab out on relay # 15, this puts the fuel pump in hi speed mode, bypassing the resistor thats in the pass side fender. if it starts up, and stays running the resistor is bad.

 

[Timmy]

wow I feel kinda dumb, That worked out pretty smooth. Now im out 300.00 for pump and filter that can't be returned but at least the problem is found. Thank you very much. which resister do you speak of though? that particular relay???

 

[Scottydoggs]

if your up and running with the tab bent out, you can just leave it like that, or get a new high speed fuel resistor.