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Re: Swap pros, need advice
Quote:
Originally Posted by biketopia
The z in the vin is what ID's it as flex fuel. Good catch LS1Nova71! Has any sort of tune been done to the ECU? If the tuner messed with the base fuel maps thinking they were going to have xx amount of fuel and really have lower this it could cause some issues. But your main issue of the insanely low pressure at first and wrong in-tank hose should get you all fixed up!
From ALLDATA-
"Measure with the Key On Engine Off with the fuel pump commanded ON.
Vin (V,T,U)
Fuel Pressure (gasoline) .................... 55-62 psi
Vin (Z)
Fuel Pressure (ethanol) .................... 48-54 psi"
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no tune, just sent it to Brendan at lt1swap. he asks for certain info and that's what I sent him, although he never asks for the vin or if it's a flex fuel...
https://lt1swap.com/programming.htm
if u follow that link and scroll down to the 99-07 section, you can see what info requires. he does ask if you will be using an aftermarket regulator or stock vaccume style regulator.
this truck engine will stay stock so I'm hoping what Brendan did is enough to get it on the road and keep it there.... unless a tune to a stock engine is still normally required?
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67 1/2 ton Suburban - Project DRGNWGN. Build thread 
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