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My M932 has gotten to where when you rev it up to 1500-2000rpm and let off the throttle quickly it will sometimes die. I've changed the fuel filter, checked for fuel leaks, checked the fuel shutoff, checked the emergency stop, and cleaned the screen in the pump.
I'd did do a little reading up on adjusting the PT pump and thought the throttle stop screw was my problem. I did adjust it up and it did help the problem but the engine would still stall sometimes. If I adjust it up more the engine will be really slow at idling down.
The way I understand it, when in the idle position, fuel goes through a different passage way than when above idle and you adjust the throttle stop to allow a little fuel to leak into the above idle passage to keep the condition that I'd experiencing from happening. Even the times when it doesn't stall the rpm will drop to 400 so before it recovers.
Do any of the Cummins experts have any ideas?
I'd did do a little reading up on adjusting the PT pump and thought the throttle stop screw was my problem. I did adjust it up and it did help the problem but the engine would still stall sometimes. If I adjust it up more the engine will be really slow at idling down.
The way I understand it, when in the idle position, fuel goes through a different passage way than when above idle and you adjust the throttle stop to allow a little fuel to leak into the above idle passage to keep the condition that I'd experiencing from happening. Even the times when it doesn't stall the rpm will drop to 400 so before it recovers.
Do any of the Cummins experts have any ideas?