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Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
Hi everyone,
I ride an ’08 FLSTSB CrossBones and have the following setup installed:
Feuling Reaper 574 Chain-Driven Camshaft
Feuling HP+ Hydraulic Roller Lifters
Feuling Quick Install Pushrods
Feuling High Flow Camplate
Feuling Race Series Oil Pump
V&H 2-into-2 Big Radius Exhaust
Last year, I installed a ThunderMax module from FuelMoto USA, which came preloaded with a map tailored to my setup and it ran great.
Recently, I started noticing occasional misfires, so I reached out to FuelMoto. They sent me a new map based on my specs, and I followed the steps to flash it using the TMax software and it went smoothly.
However, when I started the bike (while still connected to the software) and let it run for a few minutes at idle, I noticed that both front and rear AFR gauges were sitting low in the yellow zone—not in the optimal green range (I've attached a screenshot taken during idle that shows it).
I took the bike for a test ride afterward, and it didn’t feel like it was running optimally. Idle also sounds a bit off—not as smooth as before—and I’m still getting the occasional misfire.
Any thoughts on what might be causing this? Thanks in advance!
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