No fuel pulse. Has spark. Tried everything please help

[Killbillsnj]

I have a 91 ls400 1uzfe in my 91 nissan 240sx.
It has spark but does not have fuel

Here's what I checked

Replaced ignitors 4 times
Replaced ecu 1 time
Replace coils 2 times
Pined engine harness. At least 5 times. Just double and triple checking
Tested every sensor
Power is where it needs to be.


There is no injector pulse
Is there any thin that can put this car into safe mode a cut injector pulse


Im stumped and. Never had this much trouble getting an engine to run

Can a knock sensor not bring Hooked up cause no pulse ????


Any help would be apreciated

 

[gloverman]

Are you running the 26/16/22/26 pin ECU? Which pins do you have power to with the key off? where do you have power with key on? In your other post you say one earth has been removed due to the sensors you are running. Which sensors do you still have connected? Have you pulled the loom apart and removed all the unwanted wires? And it does run on engine start fluid doesn't it. The more info we have the more we can all help. Cheers

 

[Killbillsnj]

yesd i am running that ecu im going to check what has power and what doesnt


and post back

 

[samsdad]

While you are checking ensure that the injectors have 12V to one side of them with ingnition on. The wire for this is in the vehicle side of the LS harness and often gets forgotten