it can't be the fuel pump because i just put a brand new one in and when i turn the key my fan goes on which never did before and my fuel rail sees no pressure when i put the key to acc but the car starts goes to 1500 then just dies out and if you try to give it gas it dies instantly, i have a new AFPR i can put in...fuel pump relay maybe? what does every1 think, have to get this handled so i can do my trans....
-mark

 

did u change the filter after changing the pump?

 

i am going to check if the pump is getting voltage tomorrow and if not ill check resistance between the relay and pump, check the relay and see if the ecu is sending a signal, damn i hate fuel injection, not just one simple thing, i changed the intank filter, the other filter is somewhat new...

 

IROC,

Monitor the voltage to the pump. If the pump fails to run after releasing the ignition switch, check the relay and auxilliary pressure switch:

 

could it be the oil pressure switch disconnected or not working?

 

im not sure, has a new fuel pump and fuel pump relay though and still the same problem, have a new fuel filter to try, still the same problem...

 

yes it could be because the oil pressure sending unit acts as a fail safe so you dont kill the motor but it could be plugged from ****ty oil, or disconnected or not working, the fuel pressure regulator diaphram could be stuck...i just dont feel like playing musical sensors...

 

you can easily eliminate the oilpress switch by bridging the plug with a paperclip or grounding it depending on which switch it has.

 

to be a sending unit it has 2 wires, so what jump those 2 wires?

 

you might want to check the module in the distrubutor. It signals the computer on the fuel injectors to be on and working. Also check the fuses and fuses by the battery-it usually is a 20amp fuse. Other things to check a. is the new fuel pump any good
b.fuel pump screen c. fuel filter. d. wiring to the new pump. e. enough gas in the tank? . Also when you first turn on the key you should here the pump come on-a small buzzing sound. If you don't hear it, release some of the fuel pressure on the schrader valve on the fuel rail, if you have any fuel pressure!. If the pumps contantly buzzes, you have a fuel leak somewhere. Don't forget to check how much fuel you have in the tank. Good luck!

 

when i turn to accessory my dual fans come on which never happened before, fuel pump is a new holley 220lph, has gas, pump doesnt go on when i turn accessory on, when i try to start it turns on then off...
-mark

 

do you have anything that is connected to the aldl connector inside the car. Did you have battery hooked up while installing the pump?