ok guys the mechanic i am going to use thinks i need to replace the CP3 so i am thinking of useing a LBZ pump i thought i read some where that they put more prussure out is that true or should i just go with a direct replacement for my truck i am not really sure about all this so any help would be great

I guess I would want to know exactly what the truck is doing to make him think yours is bad. Did he check the line pressure with a TECH 2 at WOT? Does it lope a idle? Do you have a lift pump installed? What exactly is it doing? The LBZ pump does put out a little more fuel, but if you are not running the rail dry or lowering the pressure a bunch at WOT it won't make much difference. They aren't that much different anyway.

If you end up replaceing the pump, then def. put a LBZ pump in its place. It can only help and they are pretty close to the same money.

it is surging at idle and with all my tuners off i can get the truck to 1093 with a brand new filter he thinks it is just the fuel regulator but he is goin to try to get my warrenty company to pay for a new pump but if he can't he is going to put my pump back if it is ok witch i think it is but i was just asking the question about the LBZ pump because i hered that and was just trying to find out if that was true

regulator and shim the rail valve

Just do the shim mod u will never have that 1093 code again i dont mine and i can run my rail dry and vapor lock it still dont limp it and throw the 1093 code

Just do the shim mod u will never have that 1093 code again i dont mine and i can run my rail dry and vapor lock it still dont limp it and throw the 1093 code





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What?!? I garauntee you cant run the rail dry and not 1093!
Unless you have that code disabled with efi live or something, that code is set when there is to much variance between desired and actual rail pressure.

Funny, I don't get that code and my rail pressure is way down. Desired is 23,000 actual is 8,000, shouldn't that set off the code?

1093 is a lly thing

Do a bottle test and see if you pass or fail it. That will tell you if the relief isnt holding.

Just do the shim mod u will never have that 1093 code again i dont mine and i can run my rail dry and vapor lock it still dont limp it and throw the 1093 code


vapor lock? :confused: