firemaker

I upgraded my ls3 pump to the z06 pump. After the swap the fuel gauge remains dead, regardless of the fuel level. Anyone had any issues with the fuel gauge after the pump change? Anything to keep a lookout for that's a common issue?
i know the issues with the sensors but it's a brand new part.

Unreal

If it gets held up on a line, or misaligned/etc, car just freaks out and reads zero.

torquetube

After the tanks are reassembled but still outside the car, check the resistance of the level senders. Once with each tank right side up, and again with each tank upside-down. Confirm that the resistance goes through the full range from empty to full.

Nick P

So, I'm the guy, who's worknin on that car. The sliding contact on the level sender was pulled away, we bent it right and the fuel gauge worked fine. Now the car won't fire up - it cranks but doesnt start. We checked the bottom of the fuse box and pulled the pins of fuel pump relay a bit up, it doesn't help. We checked the fuel pressure and it was just 10 psi, so we checked the fuel tubing for leaks or bents - but everything seems fine. The car fired up in the morning as usuall, the issue came as we pulled out the fuel pump again.

What else should I check? There's no fault codes.

As the engine cranks, it seems it will start, there are couple of firings to hear but then it just cranks further - the sparks are there, so that seems to be just the fuel pressure caused problem, does it?

Regards,

Nick

Unreal

Leak in the lines in the tank. Oring didn't seat correctly.

Welcome to world of corvette fuel systems. This is all pretty typical. They are huge pains in the ***.

Nick P

Thanks for cheering up, the best thing the LS3 fuel pump and the Z06 fuel pump seem to be identical.