Thread: Does my car have a venturi fuel pump?

Check the fuel pressure mine will hold 65psi for hours. I used a fuel pressure tester and a oil pressure sensor and gauge to monitor fuel pressure when I was going through all that check valve business so I could see it from the inside without running fuel into the cab.

Jeff

You need this:

http://www.harborfreight.com/fuel-in...ter-92699.html

Originally Posted by J57ltr

Are you maintaining 65 psi at all other times, it's just leaking down within a couple of hours?

Jeff

After sitting over night @ 0psi. Primes @ 59psi, drops to 55psi after prime. 59psi while running. Down to 50psi after a minute of shutting off car and then slowly dropping.

Wow, that seems kinda fast, I'll hook mine back up after I get back state side and check again.

Well today was different. I cut open my trunk floor (no access hatch) and pulled the pump. Didn't bleed the system because it was zero PSI after 6 hours of sitting, and then cleaned everything off nice. Discovered my canister is a different plug than the Casper harness, so I put the stock pump back in, and it fired up on half a crank and ran fine. Forgot the big o-ring seal so I popped the pump back out and got probably 60psi of E85 to the eyes. Doesn't hurt as bad as gas btw, but put it back together and it fired up on half a crank once again.

Originally Posted by industrialfish

Discovered my canister is a different plug than the Casper harness

I modified my Casper harness with a spare pigtail I had:


I don't know why they still sell them with that square plug. They've bee doing that flat four plug for how long now?

Fortunately I have a pair of the square plugs sitting here so I can convert my canister and harness. It was getting late and I need the car in the morning so I didn't take the plunge in cutting things up yet.