On a trip in Gatlinburg, bike started running weird, like it was surging and bike getting hot pretty quick. Only happens when the bike is held in 2 or 3rd gear and a constant rpm for a few minutes. Was running autolite plugs, got a spare set of HD plugs and bike started faster and seemed to run a bit better. Surging didn't go away though.
​​​​​​Checked the PV and no codes. Checked while the bike was running and found wheat I think is weird o2 readings,
VE front 67%
VE rear 76%
Volts front 2.34
Volts rear 4.32
o2 ratio front 14.3
O2 rear 16.7
Lambda front .979
Lambda rear 1.14

Checked autotune wiring, all looks good, connectors at sensors not corroded.

09 street glide
103 jugs
SE203 came FM as
Jackpot pipe and 4" muffler
Powervision and autozone pro
Map from FM

 

rear afr looks pretty lean, you might try a new set of sensors, without making any tune adajustments and see if it helps, the re-run a couple of auto tune sessions to clean it back up.
m

 

On a trip so changing the sensors isn't ideal....but I was just reading through the PV thread and came across another guy that was having similar issues, which may have been from reversion. Gonna try to treat that possibility in the morning. If they is the problem I'll have to call Jamie & Co. To see what to do.

thanks for the suggestions,please keep em coming.

 

Check for an exhaust leak on the rear cylinder.
Make sure the O2 sensor is tightened.

An air leak in the exhaust will cause lean readings.
A loose O2 sensor can cause a poor ground.

 

Sensor is tight, no exhaust leak. Checked for revversion, no problems there.

 

I had emailed Jamie @ FuelMoto last night. He told me to check the wires at the target tune module. Sure enough the get wood was not secure. Loosened the screw, reset the wire and all is good.

Thanks for the suggestions everyone.

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