PerformanceTrucks.net Forums - 95 RCSB to LQ4/4L60e Swap (56k Heavy)

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Quote:

Originally Posted by Vortec350ss (Post 4863427)

Cool project. This thing is gonna screw! Is it a stock LQ4?

yes stock LQ4, The Owner wanted a truck that would pass CA Smog

-Matt

Starts up but immediately dies. Almost like VATS is shutting it off. only idles for a second at the most. No matter if I hold the throttle or not. Any suggestions?

I've swapped out the PCM with another one, I was told one was tuned out. The other PCM had no spark, so I put back the original one that I was using.

Checked codes, getting U0107 Pending and 2 other O2 sensor codes (the Precat 02 on the driver's side is the wrong connector so it's unplugged)

I know that there is no fitting on the intake for the fuel pressure regulator so I know it's getting full pressure from the pump, but I don't think it would be enough to completely choke out the engine that much.

Fuel Pressure is 50psi KOEO and 58psi KEOR

Any ideas?

-Matt

Might be the vats. But you check for unhooked grounds wires?