Sage G

the truck runs fine at idle and cruising. But as soon as you get on any kind of load or higher boost(7-9psi) it just falls on its face kind of like I’m hitting a rev limiter and it’s just sit there an every 2 seconds or so it will kick in,
On the scanner it shows both o2s running fine(800-900) until higher rpms then bank 1 drops to 15-20 “showing” that it’s runing lean but I know a misfire will also show the same thing, bank 2 stays steady. Any advice would be great

already switched coils from bank 1 to 2
changed spark plugs tr6 @.30


twin 65mm turbos
65lb Fast injectors
walbro 450

FFDP

iTrader: (2)

If you have a tuner you should be able to pinpoint what cylinders and go from there.

Swap plug wires around, swap injectors. Make sure fuel pressure is staying at 58psi.

I never like to trust narrow bands at WOT, a wideband is always going to be more accurate to see exactly what is going on.

Post the tune and logs if you want.

Sage G

I’m this info is coming from my tuner, he said he was using wideband,
I’ve put new 60lb injectors, and wires 3 different times
Fuel pressure is holding @65
and I’ve even swapped the coils from bank 1 to 2.
Thing is it’s like I’m loosing the whole side.
Does a band ground make any sense? I might try that