Ok I recently rebuilt my gsr motor in my 94 dc2. Started her up for the 1st time and ran fine, and all of the sudden fuel would cut off, then was not getting fuel, (fuel pump would not prime). I got brand new 190lph walbro pump, new oem main relay, etc.... Fuel pump would still not prime. So I have 3 ecus: 1. p61 spoon 2. phearable.net ecu 3. usdm p72. The only ecu that would prime my fuel pump is the p61 spoon ecu. All 3 of these ecu's work fine in my friends gsr. After getting the pump to prime, motor would just crank. Only way I can get it to start is starter fluid to the intake mani. Once started it will be fine, unless I try switching out ecu's. Is something wrong with my wire harness? Have no clue to what is. Anyone?

 

short circuit somewhere maybe?

 

Is fuel even making it to your fuel filter? When was the last time you changed your fuel filter?

Go back and make sure that everything is pluged in correctly!

 

double checked all connections and grounds. All are fine, and I have brand new oem fuel filter installed also.