hey everybody, i have a 2006 nightrain fxstb and the engine light just started coming on for a few seconds after i start the bike. i pulled these codes. from the P : PO374, Pn34317-06. from S: Pn68923-OOD, from SP: 67033-O4A, and none on t. any help on these, i have recently installed a power commander, arlen ness slash ness exhaust and a ro-r hypercharger. these add ons have been there for several months now with no problems.

 

Similar thing happened to my bike today. I have the PCIII with slip-ons & SE breather, been running this setup for a few months and today the CEL started coming on for a few seconds after start up. I never checked the codes yet and the bike seems to be running fine.

 

P0374 CKP Sensor Synch Error (EFI)
Refer to Manual
All other numbers Part Numbers.