ORLY?? I need to install the ZZP boost referenced fuel setup, and it requires modding the stock setup to remove a ball and spring to disable the stock regulator. If I could access that from the inside that would be fantastic... I know what you're talking about inside under the seat, I just didnt think there was enough room...

I believe you mean this plate (labeled 'J'). I took this pic when I made my fuel pump rewire (black harness below). I didn't know it had enough room to take out the pump however. I hope I'm wrong!



This should really help the OP out as well...

 

is there any link to what recalls are to what year??? i tried looking in the "recall" section but never found anything

 

I have not installed the brfps so im not sure what it entails completely. Cant see the pciture of the plate you showing im at work. When we did my buddies pump we were able to get the pump and sending unit out thru the plate I am speaking off though.

 

Supposedly the tank needs dropped for the BRFPS, but I don't see why if the entire pump and sending unit can be removed through the top like you're suggesting.

ZZP States...

"Option 2, manifold regulated fuel pressure.

-In this installation method, the factory regulator is bypassed. All other installtion is the same as option 1. This requires dropping the tank and bypassing the factory 60psi regulator as displayed in lower right slide show. Open canister and clip off zip ties holding the clips on the regulator. Then open regulator to expose ball and spring tab. Remove ball and spring tab, then clip fuel diverter back on. Re-install canister.

This method makes your fuel pressure start at ~42psi under full vacuum, and rise under boost. This requires PCM reprogramming."

 

maybe the factory regulator is blocked by the tank?

 

No sure? Here is the ZZP picture for the instructions...



Can you access that piece?

 

OK I just had my back seat out, and there is definitely no way to access the fuel pump or tank. The fuel pump wiring is under there, but nothing else. Unless there is a major year difference or it was a Redline difference or something, there is no way to get to the pump...

 

My brother knows how to do it. We had to take the fuel tank down. there's no other way to access the pump.

 

If you want a cheap and good fuel pump just get the Walbro GSS342. I just installed one the other day. They are 89 dollars at Summit.

Stock 2006+ Fuel pumps flow just as well, so you won't really gain anything, but it's probably cheaper than an OEM one.

If you have a 2004-2005 LSJ, the stock pumps are garbage and the Walbro would be a well bought upgrade.

You don't need to spend no 1000 dollars like someone said above or get a new canister.

 

I never heard of this recall

 

That's good to know. I'll be replacing mine when i turn up the boost!

 

Please re-read the thread... That is a blatant lie. I provided picture evidence a couple of posts above that shows the only way to access the pump is by dropping the tank.

 

yeah reading>me i just saw that at the bottom of the first page and quoted it then I read the second page and got let down...

 

Hey no prob, I just didn't want you to get your hopes up lol. Dropping the tank isn't a terribly hard process, it's just a little time consuming and it's dirty. Good luck!

 

thanks, and yeah i have to drop the tank to do the brfps and put a new pump in there if I'm gonna run e85 with 20 psi on my s256.

 

Depending on how cool you are with your dealer, mine was covered under the powertrain warranty, not the recall (mine was "included").

 

dropping the tank.....I fkin hated doing it.The hard part is putting tank back in....

 

[QUOTE=csementuh;5195937]Stock flows as well as if not better than the Walbro. Unless your Cobalt is an 05', in which the pump sucks.QUOTE]

fml