Ok I finally have a question, I have been reading this board for over a year and I can say I has helped quite a bit. Here goes the question.

Backgroud:
Top end from a 92 Camaro swapped into a 1972 K10 4x4 Truck, worked find then swapped out of K10 Pickup into 1972 K5 Blazer. When the TPI was in the K10 everyting worked fine no proplems. The swap from the K10 pickup to the K5 Blazer is where the fun begins. Swapped motors no proplems. Get everything hooked up and can't get the motor to start. Checked spark, plenty of spark. ECM does not give off any codes other than 12. Factory fuel pump in tank, no problems. When I try to start fuel pressure is fine around 37psi to 42psi. Got spark, got fuel pressure, but won't start, valve lash is correct. Timing is set (have checked it many times). Had all the injectors balanced and cleaned before I put the top end back together. It sounds like it's just not getting fuel. Trys to start for just a seceond or two then nothing. Almost link it's not getting fuel.

The wiring harness has the Pink/Black for the injectors-it's hooked up to switched ignition power. The Fuel pump relay wire tan is hooked up to switched ignition power also. With the test light conected to ground and the ignition key swithced to on if I check both sides of the injector plug, it has power to both sides. The injectors do run for 2to3 second when the key is engaged and while trying to start.

I don't know what to try next, I think I am missing something very basic, but can't figure it out.

Any information would be very helpful.

Thanks in advance for anyone that helps.

Rob Finelli

 

BTW it's a speed density system, and it's using a MSD AL6 Box.


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92 Camaro TPI SD, Transplanted into a 72 K5 Blazer, and it's got all the stuff.