Having a mechanical/electrical design background, I’m pretty good at troubleshooting but this problem is weird. I turn on the key to preheat glow plugs & start the fuel pump up. I do this for 12 seconds then hit the starter button & she fires right up. I also recently changed out my 10 & 2 micron filters & have fresh fuel in a clean tank so, fuel is knot the problem.
She’ll run 2-3 minutes then the rpm’s slowly falls & she stalls out.
She starts right back up then stalls over-n-over. I put my spare solenoid in but,
the same thing happens. I did a continuity check on the 10 amp circuit breaker leading to the pump and alarm buzzer & all is fine. What I did notice however was that both solenoids felt alittle too warm with engine running so, I hooked the fuel pump up directly to a continuous 12V supply & the engine runs fine with no problems & the solenoid doesn't heat up.
Anyone run into a problem like this? Could there be a problem with the alarm buzzer in the control panel, but I doubt this would cause it to stall. This is frustrating. Here also is the electrical schematic.
Any help is much appreciated guys.
Last edited: