Gsxr 600 k4 stalls/cuts off when hot
So, my k4 600 will randomly stall/sut off when hot. Talking around 100km of driving. When it does happen it will start happening often. Lets say every couple or ten minutes. If it cools down i can ride longer before it decides to stall/cut off again.
There is no fi code in dealer mode when it happens. It just says check.
Weird part is that it will crank when this happens and i can hear the fuel pump priming. I suspect there is no power comming to coils or injectors.
I checked usual suspects as side stand, kill switch. R/r is good and so is the stator. All in factory specs. Charging is a bit high, 15 v at idle and 14.8 at 5k rpm which is also ok according to manual. Battery is not overheating. Main ground is good, battery terminals are good. Ecu ground is good.
Wiggled harnes arround sensors, stand switch, kill switch, main loom, ecu connections. Basicly everywhere i could get my hand in.
Also, when it cuts off and chows check error, it crancks and fuel pump runs. That is weird, right? Again, no fi codes. Just stupid check error.
Didn't check coils or plugs. Didn't check injectors. It doesn't start to run on 3 cylinders or something like that. When it stalls or cuts of its all cylinders at once, so i don't think it is individual injektor/plug/coil scenario.
Some sensors that can make the bike do this? I figure that if sensor goes bad it would give me a code in dealers mode?
Now, my suspect is ecu. It gets quite hot while running. I can still hold it but it gets significantly hot. How warm/hot does it usually get?
Hope somebody has the similar experience.