Can I bypass lb7 fuel block?

[pat5001]

Can I run the ppe high flow nozzle and bypass the fuel block containg the fuel press sensor? I know I can. But will my check engine light stay on?

 

[super diesel]

No. The sensor tells the ECM what the pressure is in the rails and tells the FPRV what to do too. The fuel junction sends fuel to each rail bank from there. Plus your pressure sensor is there too. You can move the pressure sensor to the back of the passenger side rail if you extend the wires to it. However, you would also need new hard lines made up to do this venture.

 

[pat5001]

Ppe sells a kit with fitting and hose

 

[super diesel]

Ppe sells a kit with fitting and hose

??? Maybe were talking about 2 different things? I haven't seen or herd of this yet. What would be the reason for bypassing it? Its only a distribution block for both rail banks with a over pressure return valve (FPV) and the pressure sensor (if were talking about the same thing). The passages in it are larger in dia. than the the fuel line feeding it from the CP3, so it's not a restriction.

 

[super diesel]

I just realized that maybe your talking about the high flow CP3 feed line?

 

[pat5001]

Yea doesn't that bypass the block?

 

[pat5001]

the PPE CP3 High Flow Feed Line Kit eliminates the restriction of the factory fuel test-port / fuel block by re-routing the fuel from the fuel filter housing directly into the CP3 pump

 

[sweetdiesel]

It goes to the ficm out of filter


You can just run a hose if you want

It's just a t going to the test port iirc

 

[super diesel]

That's the one. I understand what your wanting to install now. No issues with the install that I've ever herd of. Do you have the moded regulator and suction pump (if your running a LB7/LLY CP3)?

 

[blk smoke lb7]

So is it ok to bypass the ficm? the fuel flowing thru it is suposed to cool correct? i have been wantting to relocate the ficm to the inner fender or to the firewall to get it away from the motor and i see the ficm as resriction and i would love to eliminate the fuel line going to it

 

[x MadMAX DIESEL]

What happens to the injector return with this kit?

 

[super diesel]

I don't. Some do though. When I ran a higher pressure pump in a multiple stage lift pump set up, I would run it after the FICM where it would suck through it. 120+ PSI at the CP3 was no problem.

 

[super diesel]

What happens to the injector return with this kit?

Stays the same and intact.

 

[x MadMAX DIESEL]

So than that leaves the useless test port on the engine. Unless lbz is different than the lb7 as far as the return and supply running through the test port aluminum?

 

[super diesel]

On the LB7 there separate and metal (supply and return). So yes, it will be a useless port at that point. Been a while since I've been into them both. Cant remember all the differences in that area. Maybe some one will chime in.

 

[JoshH]

So than that leaves the useless test port on the engine. Unless lbz is different than the lb7 as far as the return and supply running through the test port aluminum?

The LBZ is different from the LB7.