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DTC Code 641. Help!!!!

2K views 0 replies 1 participant last post by  nova2sportster 
#1 ·
Last weekend i got home from a 400 mi trip on my 2006 Nightrain and noticed the clutch was in need of adjustment. I adjusted the clutch per spec and took it for a test ride and the check engine light came on about a 1/4 mi from the house. I pulled over and checked the codes and P0641, 117 and 118 were present. Cleared and started the bike back up and it went to forced idle. I limped it home.

After some diag i replaced the ET sensor. The code 641 is still present and i took the cover off the harness and inspected the wiring. To no avail there no problems with the wiring. I checked the connectors at the Ecm and found nothing.

Also it has a thundermax ecm. Please help.

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