929 with no spark
#11
#12
I looked down the throttle bodies with a flashlight and the injectors are not firing either. Fuel pump is priming though. Injectors test out ok and have battery voltage power to them which drops to around 10 volts when cranking just like the coils. Why wouldn't either the coils or injectors fire when they have power to them?
#13
#14
ECM had continuity to ground when I checked. I have battery voltage on the pink wire at the ECM but not sure at the ignition switch, I will check. Would the cam sensor giving a low voltage cause the ECM not to ground the circuits? When I test the cam sensor it only reads about .5 volts max but mostly in the .2-.3 range when the manual states it should be >.7 volts minimum. I tried using a different cam sensor and still got the same reading. I do not have a peak voltage adapter like the manual states but when I test the ignition pulse generator it tests out fine at 1.1 volts using the same method. I have a feeling this is where my problem is but I don't know what would cause the cam sensor to give low volts other than the cam sensor itself?
Last edited by jkjel15; 01-07-2014 at 03:54 PM.
#15
The pink wire must have 9v. There is a resistor on the bottom of the switch that reduces it. If the ECM doesn't see ONLY 9v, it won't fire the coils or injectors. It's a security feature to prevent it bike from being hotwired easily.
I don't think that it's discussed in the manual either.
I don't think that it's discussed in the manual either.
#16
The pink wire must have 9v. There is a resistor on the bottom of the switch that reduces it. If the ECM doesn't see ONLY 9v, it won't fire the coils or injectors. It's a security feature to prevent it bike from being hotwired easily.
I don't think that it's discussed in the manual either.
I don't think that it's discussed in the manual either.
#18
The pink wire must have 9v. There is a resistor on the bottom of the switch that reduces it. If the ECM doesn't see ONLY 9v, it won't fire the coils or injectors. It's a security feature to prevent it bike from being hotwired easily.
I don't think that it's discussed in the manual either.
I don't think that it's discussed in the manual either.
#19
#20
Thanks 74Demon you are a lifesaver! I hooked a 9 volt battery up to that wire just to see if it was the problem and what do you know it fired right up. I also found out that my original ECM was bad as well as the bike will only start with the known good one I acquired during the troubleshooting process. I can't believe Honda doesn't mention anything about this wire or the resistor in their manual. Do you know what type/size of resistor or diode that I could splice in that would accomplish the same job as the original one? Was reading in some other posts that a 2.2k ohm resistor would work but I tried that and it didn't seem to drop the volts at all. I couldn't appreciate your help more!
Last edited by jkjel15; 01-09-2014 at 03:14 PM.