pat dolan
New Member
I imagine every newbie arrives here with a problem to post...so I won't dissappoint.
'97 K1500, 200k kms, had an easy life as vet truck, parked until last year. The FSD was giving some grief last year, & what I thought was one symptom was losing boost. Had code for boost solenoid, so replaced that, as well as relocating a new FSD with SS diesel harness & heat sink. It runs better now - EXCEPT the one symptom did not go away.
If I use any more than a middling bit of fuel feed, it smokes (black only). Threw AE on it (I'm a newbie with that too) & went for a drive. Anything over 55 mm3 of fuel delivery & the smoke starts. I am getting 21psi absolute MP (which I think is right), & boost control shows over 95% duty cycle at full pedal position.
Getting only 15 inches of vac at the pump idling, but the 7 psi of boost SHOULD be enough to burn this much fuel...or is it.
Any suggestions most appreciated.
'97 K1500, 200k kms, had an easy life as vet truck, parked until last year. The FSD was giving some grief last year, & what I thought was one symptom was losing boost. Had code for boost solenoid, so replaced that, as well as relocating a new FSD with SS diesel harness & heat sink. It runs better now - EXCEPT the one symptom did not go away.
If I use any more than a middling bit of fuel feed, it smokes (black only). Threw AE on it (I'm a newbie with that too) & went for a drive. Anything over 55 mm3 of fuel delivery & the smoke starts. I am getting 21psi absolute MP (which I think is right), & boost control shows over 95% duty cycle at full pedal position.
Getting only 15 inches of vac at the pump idling, but the 7 psi of boost SHOULD be enough to burn this much fuel...or is it.
Any suggestions most appreciated.