GM 8.1 Vortec

[waylyn]

ECU is a Delphi RYF1

I am looking for info on this ecu I am a tuner in the uk I have kess v2 genuine and flex magic motorsport genuine but this ecu is not on either system, I own a Fleetwood Pace arrow RV with this ecu would like to tune it but so far can't see anything that will read or programme it, does anyone know what equipment is used to read these ecu's, and if anyone has the pinout I would appreciate it.:smile:

[conrad1017]

do you have photo of your ecu Same as US?
hp tuners support every gm ecu i ever encountered obd with very friendly editing interface

or these older gm ecus maps on 28f400 ,28fxxx


https://www.thirdgen.org/forums/diy-prom/507563-pcm-hacking-101-step.html