Bought a 2000 VFR 800 FI because the previous owner(s) could not get it started and I wanted to give it a try. Going through the schematic and t/s guide I eliminated the problem to the ECM (I think). Is there a way to check the ECM that the manual doesn't cover? Or is there a way to get a schematic of the ECM? I want to make absoulutely sure the ECM is the problem before I invest in one.
It is much easier to diagnose an electrical problem down to one component that to diagnose if the component (in your case the ECM) is correct. the way I've handled this in the past is to find a buddy to swap components with. Since yours is going be assumed bad, go to a bike that works and swap your bad one in (don't put a good component in your "bad" bike 1st). If your bad ECM causes the same problem, then the known good one, when you swap back fixes it... then you can feel pretty confident in your ECM investment. Without some very specialized testing equipment that feeds the ECM the signals it expects, it is tough to test. Where are you located Surfales? If you go to "My Settings" and add your location and a map dot, folk local can offer to help if they have time and such. Good luck with it. Let me know if it works!
noz sounds correct when it comes to the eletronics finding spark etc you can get a meter it pinches the line and see if its hot the dreaded black box check the wires where it plugs in then if the wires are hot then you know somewhere the pulse is not going through i reccommend the shop look at it if they are wrong in diagnois then you have a recept and can resolve the problem plus they test ride it etc h8 to spend that money there but it will be fixed right. they are also honda certified u no skool talk to shop manager not the tire changer becuase he has the most knowledge or should be the number mechanic there.. good luck!!!
It would be great if you could take the ECU to your Honda dealer and have it tested..........but you can't, they won't, they can't. Thanks, Honda. What you could do is check that 12 volts gets to the power input wire (as determined by wiring diagram) and check the ground.
I found a resistance reading that shouldn't have been there so I thought I had a bad diode. No such luck, the diode was good. So I thought it must be the clutch switch. Nope clutch switch good. Still no spark. Maybe pulse generator?
