Looking for help with fuel pump on my 87 turbo. Followed blogs to these checks:
1. fp/inj 15 amp fuse. good
2. fp relay at pass fender. new
3. +12 to grey fuel pump wire near alternator triggers pump. pressure builds to 30 lbs.
4. ECM codes to only 12. No faults
5. +12 to pink/black lead at fp relay
6. +12 to brown lead at firewall fusebox connection powers pump
Looking for help. Searching through blogs finds "crank position sensor" as possible reason for failure. Anyone else solve this problem with a crank sensor? Also checked oil pressure sensor leads for shorts and find none. Analysis rules out ECM, fuse/shorts, fuel pump and fp relay.
I'm out of ideas. So I'm interested in anyone's experience with this problem.
Thanks,
DGC
1. fp/inj 15 amp fuse. good
2. fp relay at pass fender. new
3. +12 to grey fuel pump wire near alternator triggers pump. pressure builds to 30 lbs.
4. ECM codes to only 12. No faults
5. +12 to pink/black lead at fp relay
6. +12 to brown lead at firewall fusebox connection powers pump
Looking for help. Searching through blogs finds "crank position sensor" as possible reason for failure. Anyone else solve this problem with a crank sensor? Also checked oil pressure sensor leads for shorts and find none. Analysis rules out ECM, fuse/shorts, fuel pump and fp relay.
I'm out of ideas. So I'm interested in anyone's experience with this problem.
Thanks,
DGC