1995 P7100 White smoke under load, won't rev over 2800
I have a 1995 12 valve in a 1998 Chevy k3500. Rebuilt engine myself. Has 5x.011 injectors vco from DAP . Hw1c turbo.. I have the engine set at 14.5 degrees timing. Has a brand new OFV fuel pressure at idle is 25 PSI and seems about 30-35 under rpm. I dont have an in truck guage to see what it is under a load.
My problem is as I roll into the throttle anything over 2500 rpm the motor loses power blows white smoke and pops. I have the 4k governor springs in it and it won't go over 2800. Runs great below that and smooth idle instant start up. Need some ideas where to go next |
Ok so I was mistaken on fuel pressure, it's about 22 at 2200 if I pinch off the return it will rev out to 2800 before I left off. So it's a fuel supply issue. Pinching return makes it go to 80 psi very fast so I'm thinking the lift pump is fine. It's a brand new overflow valve but looks like it's bad
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