Help. Blew ECM fuse. Why???

fireman68 · 11-05-2008, 06:45 PM

Last week I did the Caddmann mod on right side only (I also unplugged the green wires on the solenoids, taped them and put them in plastic wire wrap) and installed a TFI. I set the TFI at the recommended settings and then over the next few days rode about 150 miles with no problems. Today, I thought I would fine tune the TFI. I set the 1st pot to where the high idle would not increase anymore (2:45). I then started to try to adjust the 2nd pot. I started at 3:00. I then went for a short ride hitting the throttle pretty hard to see if it would hesitate. About the 3rd time, I blew the ECM fuse and the bike stalled. Any suggestions on what would cause this and where to start looking to fix it???

VulcanE · 11-05-2008, 08:23 PM

Was your TFI a plug & play type? If you had to splice any wires, I would double and triple check them. I also would strongly recommend soldering any spliced connections and use heat shrink over the connections.

Yellow Jacket · 11-05-2008, 11:16 PM

Double check the wires you removed from the solenoids also. Make sure your taping and wrapping didn't come undone.

dkdixie · 11-05-2008, 11:37 PM

Quote:

Originally Posted by Yellow Jacket

Double check the wires you removed from the solenoids also. Make sure your taping and wrapping didn't come undone.

That's exactly what Caddmann said would possibly happen if ICS wires were not taped and/or shrink wrapped securely.

As Bob suggested, double check those wires.

fireman68 · 11-06-2008, 06:55 AM

TFI is plug & play. Rechecked solenoid wires and they are still taped and wrapped. Haven't had a chance to look into it further. Is the fuel system the only thing that runs through this fuse?

dogdoc · 11-06-2008, 09:27 AM

fireman68: Thats a weird deal. I just did what you did about 3 weeks ago and Im fine here, no problems. It will take some hunting this down to try and fix it, or it might never do it again.

fireman68 · 11-06-2008, 08:35 PM

Rechecked all the wiring. The ICS wires were fine. The only thing I could find was one of the wires from the TFI to the throttle bodies was pinched by the gas tank. It didn't break the wire or rub off any insullation, just made a hole in the wire cover sleeve. Repaired it and relocated it and put it back together. It started ok and ran fine. Can't go for a test drive due to rain. Hopefully this was the problem.

dogdoc · 11-07-2008, 02:45 PM

sounds like you fixed it, good job.

dkdixie · 11-07-2008, 08:50 PM

Way to go! Hope it is indeed fixed!

11-05-2008, 06:45 PM	#1
fireman68 Member Join Date: Mar 2008 Location: Lafayette, IN Posts: 103	Help. Blew ECM fuse. Why??? Last week I did the Caddmann mod on right side only (I also unplugged the green wires on the solenoids, taped them and put them in plastic wire wrap) and installed a TFI. I set the TFI at the recommended settings and then over the next few days rode about 150 miles with no problems. Today, I thought I would fine tune the TFI. I set the 1st pot to where the high idle would not increase anymore (2:45). I then started to try to adjust the 2nd pot. I started at 3:00. I then went for a short ride hitting the throttle pretty hard to see if it would hesitate. About the 3rd time, I blew the ECM fuse and the bike stalled. Any suggestions on what would cause this and where to start looking to fix it??? __________________ 2003 1500 Nomad FI Cuckster's single plate Vance & Hines duals Dobeck TFI Login or Register to Remove Ads
	0

11-05-2008, 08:23 PM	#2
VulcanE Sr. Member Join Date: Jan 2008 Location: Cartersville, Georgia Posts: 4,838	Help. Blew ECM fuse. Why??? Was your TFI a plug & play type? If you had to splice any wires, I would double and triple check them. I also would strongly recommend soldering any spliced connections and use heat shrink over the connections. __________________ Cliff "VulcanE" Evans 2005 Blue & Silver 1600 Nomad VBA # 320 VROC # 20381
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11-05-2008, 11:16 PM	#3
Yellow Jacket Top Contributor Join Date: Nov 2007 Location: Fayetteville, Georgia Posts: 5,792	Help. Blew ECM fuse. Why??? Double check the wires you removed from the solenoids also. Make sure your taping and wrapping didn't come undone. __________________ Bob KawaNOW/VBA 210 Green/Silver 2006 Patriot Guard Riders 2009
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11-06-2008, 06:55 AM	#5
fireman68 Member Join Date: Mar 2008 Location: Lafayette, IN Posts: 103	Help. Blew ECM fuse. Why??? TFI is plug & play. Rechecked solenoid wires and they are still taped and wrapped. Haven't had a chance to look into it further. Is the fuel system the only thing that runs through this fuse? __________________ 2003 1500 Nomad FI Cuckster's single plate Vance & Hines duals Dobeck TFI Login or Register to Remove Ads
	0

11-06-2008, 09:27 AM	#6
dogdoc Top Contributor Join Date: Jul 2007 Posts: 5,263	Help. Blew ECM fuse. Why??? fireman68: Thats a weird deal. I just did what you did about 3 weeks ago and Im fine here, no problems. It will take some hunting this down to try and fix it, or it might never do it again.
	0

11-06-2008, 08:35 PM	#7
fireman68 Member Join Date: Mar 2008 Location: Lafayette, IN Posts: 103	Help. Blew ECM fuse. Why??? Rechecked all the wiring. The ICS wires were fine. The only thing I could find was one of the wires from the TFI to the throttle bodies was pinched by the gas tank. It didn't break the wire or rub off any insullation, just made a hole in the wire cover sleeve. Repaired it and relocated it and put it back together. It started ok and ran fine. Can't go for a test drive due to rain. Hopefully this was the problem. __________________ 2003 1500 Nomad FI Cuckster's single plate Vance & Hines duals Dobeck TFI
	0

11-07-2008, 02:45 PM	#8
dogdoc Top Contributor Join Date: Jul 2007 Posts: 5,263	Help. Blew ECM fuse. Why??? sounds like you fixed it, good job.
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11-07-2008, 08:50 PM	#9
dkdixie Sr. Member Join Date: Nov 2007 Location: Blairsville in N. GA mountains Posts: 1,625	Help. Blew ECM fuse. Why??? Way to go! Hope it is indeed fixed! __________________ Dick Campbell Blairsville, GA 2008 Red & Black Nomad 1600 (retired) 2009 1900 Yamaha Stratoliner (retired) 2013 1900 Yamaha Stratoliner 2018 CanAm RT Limited Spyder (Sold) 2014 Goldwing Roadsmith Red Trike (Sold) 2019 Goldwing DCT Roadsmith Copper & Black Trike VBA #243 Darkside #115 Patriot Guard Rider American Legion Rider
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