So, couple of weeks ago I lost my only key for my cbr 600 f4i, there is a post there somewhere, was recommended by some people sending it off to programmer, and progressed it with them, sent my ecu and ignition barrel and it arrived back today, plugged it all in and the bike will not start, sounds to me like the fuel pump is not priming, prior to sending the parts when turning ignition switch sounded like fuel pump priming, at a loss here, checked and replaced main fuse and all sub fuses just in case but I'm in the same predicament, is there any tests with multimeter I can do to narrow it down to being a hiss fault or ecu fault ?

 

https://cbrforum.com/forum/f4i-main-...s-hiss-164405/

 

Thanks for updating to close thread down.