94ChevyZ71
Newbie
I have 94 K1500 with a 5.7L TBI that isn't getting any spark or fuel as of today. I have replaced the plugs, plug wires, cap, rotary button and coil. I replaced the fuel pump a year ago and just replaced the fuel filter. My truck would crank and idle rough all last week but drove fine but occasionally died in park or at a red light. I have also replaced the TPS and IAC sensors. I checked the fuel pump plug and it was getting 14v and last week when it was running I measured 10Psi of fuel pressure. Today I tried taking an old distributor and hooking the two plugs to the control module under the cap and then hooked a ground wire and spun the distributor by hand with the key on and I would get spark to the coil and the injectors would fire but it won't do that when cranking. I had a code 54 but after unhooking the battery and resetting the computer I haven't been able to get any codes because it won't start. I thought it was a pickup issue but I threw another distributor in it and still didn't have any luck. It's an original ECM so I think my next move is to replace that. If anyone has any suggestions as to what I should try next I would greatly appreciate it. Thanks!