LS Swap from hell. Passenger side bank dropping out
I have an LQ4/4L80E that I’m having massive trouble with. Truck runs great until it warms up then runs like crap. We’ve narrowed it down to the passenger side bank not running. If you unplug and reconnect an injector on the PS bank while it’s acting up, it comes back to life. If you shut it off and restart it’s fine for a few seconds then back to running bad. No codes. Live data shows a healthy motor. Perfect fuel pressure.
I have literally replaced every sensor on the engine along with the ECM and the harness+coil harnesses. Replaced all fuel lines, injectors, fuel rails, regulator, filter, pump etc.
I am stumped, everybody that I’ve had look at it is stumped. Need help