1993 g20 Sport Van will not start,
#1
1993 g20 Sport Van will not start,
Hi i'm new to this and I sure hope you guys can help me? I have a93 G20 sport van,it has the 305,it gets no spark out to the plugs,so far I have replaced the coil,knock sensor,ignition control module,ecu,tcs,distributor pikup coil,rotor,cap,tested all the in line fuses and still I am not getting any fire out to the plugs?When I Run the diagnostic test aldl B-to the ground it pulses 3 pause 3 which is code 43 that says MAP sensor MY ? would that make this van not start? I have put so much $$$$$$ into it now Please help?!!!!
#2
Senior Member
True Car Nut
i dont think the map would keep it from starting. you check to see if you have power and good ground to pcm? ohm wires to icm? make sure they arent shorted to ground?
33 MAP sensor signal voltage was too high (low vacuum) for 5 seconds when throttle opening was under 4%.
33 MAP sensor signal voltage was too high (low vacuum) for 5 seconds when throttle opening was under 4%.
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whitenite (11-04-2013)
#3
Senior Member
Make sure your getting a full 12 volts to the pink wire on the coil. More than once I have had to repair the wiring harness because the splice breaks loosing power to the coil.
1992 GMC C1500 PICKUP Ignition Coil Connector
1992 GMC C1500 PICKUP Ignition Coil Connector
#4
Hi i'm new to this and I sure hope you guys can help me? I have a93 G20 sport van,it has the 305,it gets no spark out to the plugs,so far I have replaced the coil,knock sensor,ignition control module,ecu,tcs,distributor pikup coil,rotor,cap,tested all the in line fuses and still I am not getting any fire out to the plugs?When I Run the diagnostic test aldl B-to the ground it pulses 3 pause 3 which is code 43 that says MAP sensor MY ? would that make this van not start? I have put so much $$$$$$ into it now Please help?!!!!
#7
Senior Member
Posts like a Supercharger
that was me just kinda saying what could be something stupid out of blue btw. since u pretty much did check a lot of important things. lol
are u super possitive that you dont have no spark at all? i though i didnt on our 87 G25 van w/305 untill i start adjusting a timing and it picked up and ran.
btw how did it all happened to begin with? one day spark j/went away or?
are u super possitive that you dont have no spark at all? i though i didnt on our 87 G25 van w/305 untill i start adjusting a timing and it picked up and ran.
btw how did it all happened to begin with? one day spark j/went away or?
#8
Senior Member
I just had a thought, have you checked to see if the the dist is turning while it'* cranking? Perhaps the timing chain broke and you don't have an electrical issue.
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