I have a quad yamaha yfz450 with engine XT660Z ( 2008r) on wiring loom 26 connector And ecu 5VK-8591A-00 , I installed emulator immo and does not want connect to ecu . I checked emulator on my friend's motorcycle XT660 2008, and works well. Why work in 2008 year and in 2004 does not?

the second question. someone tried to run XT660 engine on the wiring loom And ecu of raptor 700? I can buy the raptor wiring loom And ecu for 200 euros.

Thanks for the help

I installed wiring loom from 2008 and Ecu 2010. emulator connects to the ECU. When the ignition is in position ON the fuel pump turns on but still no spark and tension to the injector.

No fault code showing , When the push button starter motor engine LED flashes quickly all the time.
Any idea?

I'm very interested in how you will solve this!
I have just bought a crashed xt660x that I will rebuild completely.
I won't be running it with the stock speedo since I will fit a ktm fork and front wheel with proper brakes.
So I won't be able to fit the ignition switch on the correct place, so I'm thinking of replacing it with something else.
But I also will need to figure out how to bypass the immobilizer.
However I will have both the red and regular keys.