i tried power commander on my 2020 yfz 450 r se, nothing but problems. quad stalled and still popped and shot flames out running too lean. I bought a BNR Motorsports tuned vortex ecu which was plug and go never had problem yet . raced two GNCC races and CXC local cross country race and ride mx tracks and trails alot. I have full FMF exhaust with the powerbomb header.
I installed mines yesterday and got the same code. I email HMF and they told me that the 23 raptors having problems with the tune and told me to call dynojet.
Any update? Did you get the light to turn off? Im having the exact same issue with my 23 raptor. I gave dynojet a call and they askes me to place a warrenty place but the quad runs fine but just has the engine light on
