Hey, I also took my bike back to HD for a check and they could not find a problem with the check engine light....I just had them make a note of it in case there is a problem in the future.. It still to this day comes on intermittently, so I still don't have a good answer as to why it doesn't come on all the time. If you find out anything please let me know.

thanks, arctic

 

I've got a '07 Heritage Softail with a Thundermax. My check engine light comes on when running. Will this diagnostics test work with the Thundermax or does it require the original ECM?

 

I don't know the answer on the TunderMax, but all the DTC's can now be found here.
https://www.hdforums.com/forum/softa...odes-dtcs.html

Drew