I got myself a project cbr929 and got it mostly working besides a bad bucking issue and dying at idle that I can’t seem to find, I’ve done a lot so far new FPR new ignition coils and new spark plugs two used sets of injectors off eBay and a used TPS, new fuel pump and filter ive checked compression every cylinder is at 190 psi checked valve clearance all with in-spec, I’ve checked stator and all is good. I’ve checked to see if injectors were shorting out not the case and they ohm correctly I set TPS to 0.500v at closed throttle I checked Map sensor voltage at idle and it’s 2.100v I’ve checked fuel flow In 10 seconds and it flows over double the spec. I even fixed the grounding block in the engine bay to see if that was the issue and torn apart the wiring harness and didn’t find anything so at this point I don’t know what to do besides find a shop to look at it because at this point it’s just a money pit. Also from what I understand the ecu should be fine as long as it’s able to throw codes which it does if you disconnect something I’m not a 100% sure on that though

 

Have you checked that the throttle position wire connector is not mixed up with the map sensor connector?