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Posted on Sunday, September 18, 2022 - 02:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm terrible with diagnostics. But walk me through it I'd be able to learn.

2006 Buell Ulysses
Part Change History::

1. Changed CPS (old from eBay)
2. Changed ECM and added Baro Sensor ( Old from eBay, Seller was adding a Baro sensor to ECM).


1. Bike was running terrible when it's hot so i replaced the CPS. Still running very terribly. I got some freeze spray while it was hot but there was no change.. So I ruled out CPS.

2. I had a skip spark issues earlier. When riding the Red Engine light starts blinking. Until i slow down. Below 3000rpm. I took apart the ECM and resoldered the broken joints.. The red light stopped however bike ran terribly when hot. So I had to replace the ECM and did a TPS reset. The bike runs pretty well. However, while doing the TPS reset according to the manual, I should expect 5.1 to 5.5. However in my case at 1000-1130rpm the TPD is between 3.9-4.1

I was thinking probably because i changed the CPS I may need to do a static timing.
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