Tim you neeed to be very careful with these EGR delete kits. I can vouche for the Greeen Diesel software, as it has been running in my old KJ for over ten years. Sad to hear Green Diesel has had to comply with the EPA regs, as I thought Trump had got them to throw out any enviro reg activities, although some US states do test vehicles for this.
Remember that the stock KJ CRD ECM software has a compressor surge protection routine, which uses the EGR valve to dump overboost pressure into the exhaust manifold, typically when you back off the throttle suddenly. This feature protests the turbo varible vane setup and supposedly extends turbo life. This feature was carried over in the Green Diesel tunes because it was deemed to be so important. It is the only time Green Diesel actually acutates the EGR valve, for the boost dump.
Simply blocking off the exhaust manifold port is not going to help with turbo longevity, because thr pressure will have no where to go (unless you continue to use the EGR as a dump valve, which is what I did on mine). Changing the flow control valve for the bypass setup will not provide any place for the overboost pressure to go, except to back up out the turbo vanes. You could try to find a blow off valve to plumb into the intake but it will require knowledge of what pressure needs to be set.
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