C4 Corvette Fuel Pump Replacement (ZR-1 LT5)

How to replace a fuel pump in a C4 Corvette 1985 to 1996. This particular pump replacement was on my 1991 Chevrolet Corvette ZR1.
There are 2 pumps feeding the 5.7 litre 32-valve ZR-1 LT5 engine. 1 Primary, and 1 Secondary. I replaced both.
The engine would not run and tests revealed only 5-10 PSI of fuel pressure. By Spec it should have around 40 PSI.
Both pumps were replaced. If you cannot find a ZR1 Corvette specific pump, use a pump from a big block Suburban. 7.4L / 454 cubic inch. For example: ask for 2 pumps for a 1996 Chevy Suburban with a 7.4 V8. The Suburban pump is nearly the same as the 2 ZR1 pumps and is and widely available. I found 1 at Autozone, and 1 at O'Reillys.

[@emilianocruz11]

Yesss your zr1 ITS back ❤❤❤❤

[@gregs_garage]

yes I'm filming a fuel filter replacement should be a fun video lots of leaking gas.

[@XESCOBARCARTEL]

Hey man , abit off topic but I was wondering to remove the n239 and the n18 on a 1.9 pd tdi do I just unplug , unbolt the vacuum lines and actual component itself ?

[@gregs_garage]

Not sure on those. Try it.