Ok so I have an 87 GN and I am having some MAJOR issues right now. About 2 weeks ago I put a new intake on the car and took it for a ride. It rode great and felt great. I got on the highway and hit about 3/4 throttle and it started to sputter so I got off the throttle and if I hit the throttle again it would bog down and it finally died. I could not get it started on the side of the road so I had it towed home. Once home I checked the ignition control module (even put a new one on) and no change. Next I tried a new coil pack and nothing. Next I tested the crank position sensor and put a new one on, nothing. Checked and rebuilt the cam sensor, nothing. All the while I have had no spark. Engine cranks fine just no spark. So I proceded to check all the wires on the ICM harness everything checks out ok but ground did not read out as continuous so I soldered in a new ground on the harness and this didnt fix anyting either. Next I hooked up a noid light and found I have no injector pulse (light not on at all). So I went to the computer next. Picked up a computer for 75 bucks and this didnt fix it either. (I know the best way to fix a GM is to throw money at it )So next I probed all the wires on the computer (I know best readings are taken with the car hot at closed loop but seeing as how the car wont start I had no choice) and everything seemed to check out ok. I had power on all the injector lines and the main harness power. Next I went to the injector harness itself. I had power on the individual injector clips so I went to the harness at the back of the intake. On this harness I read the pink/black wire (power) and had the 11-12 volts but it read continuous to ground... So I figured that maybe I had a direct short but I had no blown fuses. I checked the pink/black wire on the other sensors and they all read the proper voltage with key on but also read contiuous to ground. I than proceded to take the wire bundle that comes from the computer to the injector harness apart and inspect all the pink/black wires and there are no broken or frayed wires that I can see. Please help me. I am at my wits end with this car and I dont know where to go. I have probebly 10-12 hours in the car and it feels like I have gone nowhere. Any suggestions would be much appreciated.
Thanks
Andrew
Thanks
Andrew