Hello,
I am having some trouble with my 2004 FLHRI. It started loosing power and surging a couple of months or so ago on my way home from a road trip. Since then the problem has gotten worse. It was only doing it when it would get warm so a shop replaced the coil it seemed to be better, but not fixed completely. The plug wires, plugs, crank position sensor, and TPS have all been replaced.

I checked the fuel pressure and it runs at a constant 60 psi. Now when idling one cylinder will loose power and then kick back in after about 10-20 seconds of not firing. Mixture goes lean on that sensor. I also have another ecm that I tried and it had no changes to the operation.

My bike is a 2004 FLHRI with big bore kit, cams, true dual exhaust with no baffles, thunder max with auto tune ecm. and both o2 sensors for it are new.

 

Replace the TMax.

 

The tmax isnt the problem this time