I have found that with the SERT monitoring it the AFR desired shows an 11.5 value at idle but the loaded map in the ECM calls for a 13.8 ratio at idle. It doesn't get to 11.5 until about 90-100 on the MAP in the tuning file. MAP load at idle is about 41 actual at idle. So, if I understand this right, the tuning map is calling for an AFR of around 13.8 but the ECM is calling for an AFR around 11.5 with the MAP at 41. It looks like everything is working but the ECM is calling for a much lower AFR than it should be according to the tuning file that was loaded into it. I've reloaded the tuning file just to see if that would make a difference but it didn't. Is it possible that the ECM is faulty and not calling for the tune specified AFR? That's what it's seeming like to me. I"m attaching a pic of my tuning file that is loaded in the ECM and a pic of the data file at one moment of running.

 

I guess we're going back to the top of the thread where the VEs were brought into question. Before throwing an ECM at it I would bring the bike to a good pro tuner and let them have a look.
BtW your engine temp is showing 124° f, that's to cold.. you need to get it get over 190° to bring it into closed loop.

 

Bump.

A bad engine temp sensor will also cause a rich condition 124° is too cold. Run the engine and see where it goes. It needs to be over 200° f to get proper readings

 

I will get it warmer but it was just idling in the shop. Also, while I have wide band O2 sensors with the Twin Scan, the bike its self does not run on closed loop as it didn't come with O2 sensors when new.
Also, this tuning file is what was loaded into the ECM the last time it was tuned at a Harley shop, several years ago, so it's the result of a professional tune that for some reason, it isn't working now.

 

Even without O2s the bike should have a cold engine strategy tune until warm. If you're going off of readings at 124°f as an normal operating temperature you might as well be at full choke on a carbed bike because that's what a cold engine will give you.

 

I see. I'll get it warmed up and see what it's like then. Thanks

 

It could just be a bad temp sensor. Anyhow the data you posted was for a cold engine, get it nice and hot and recheck it.

 

The AFR table is meaningless if you don't have your VE tables spot on

 

Agreed but check the temp senor data, (126°f) that's a cold engine or a bad reading that the ECM is picking up. Like they say garbage in garbage out.

 

As soon as I get time, I'll get it warmer and recheck everything but I'll say again, this tune was running well for about 9 yrs so something has changed, either one of the sensors or the ECM, I would think as the tune should still be the same tune that it ran fine on for many years. In the beginning of this problem, I took the engine temp sensor from another bike I had, that was the same part number, and put it in this bike and it made no difference. But I'll still warm it up and see what is going on---just may be another day or so before I report back.