No fuel after engine bay wash

[J. Todd Murie]

So I had a oil line split and after replacing the hose, I washed the engine bay and took the car for a test drive.  Everything seemed fine so I brought it home, shut it down and polished a couple pieces.... Then I go to start the car and there is no fuel pressure.

I have checked the pump and it is fine, the fuel pump relay also seems to be working correctly, but the power from the relay is not making it to the pump.  The only other thing I can think I have broken is the injector resistor pack.



Does anyone know if this thing could be my issue?

[Bryan Hoytema]

have you checked for fuel pressure with pressure tester ? or are you just going by ear and hearing relay click and fuel pump wining ?

[J. Todd Murie]

Yes, I have checked with a pressure gauge.

I also pulled the pump out and applied power, and it works fine.  There is just no power going to the pump.

[Travis Koch]

First thing to check is the CAS.  Moisture inside will stop fuel pump from activation due to no signal.  Open it, dry it out with compressed air and replace. go from there.

Always cover that MOFO up when washing engine.... or at least stay away from it.

Good luck

[daniel Dee]

My fuel pump would shut down after a launch.
The problem is with the factory connector to the fuel pump.. The connecting plug female end  was full of greenish powder...
Try to clean with baking soda....Still don't trust the connector so I added a parallel bypass.

[J. Todd Murie]

I checked absolutely everything! and came to the conclusion that the ECU was the culprit...  So I first attempted to re-seat the ECU connectors and what the hell? IT WORKED!

It should be noted that the car has an AEM EMS V1 so the fuel pump primes before the engine is cranked over.  While troubleshooting, the fuel pump would cut in and out very quickly so I was able to determine that certain components were still functioning.

[Travis Koch]

Oh... thanks... that reminds me... I have to check something.