SW20 came home yesterday...started fine on the trailer...didn't want to fire this morning..put 1/4 tank of fuel in..looked like it might have been empty...no fire...if I pour a small amount of fuel into the air tract hole it fuels just for that fuelll cant hear the pump priming...but don't rmember hearing it before...tried diag of TE1 toE1...nothing on the dash engine light...possible blocked fuel filter?..Anyone?
R

Im pretty sure you can bypass the fuel pump relays via the diag box to check if the fuel pump works. Can't remember which pins tho....

Got it going...hit it with a battery booster and kept turning the ignition on and off as I had Pe and +B bridged and I could suddenly hear the pump kicking in....took out the bridge and hit it and it fired...Phew!!
R