I was recently sitting in traffic when my check engine light came on. It shut off within 2 minutes.
I thought it could be due to heat or something, but just to be safe I pulled DTC codes and got P0120, P0123, P0220, P0222 - these seem to be all related to the Throttle Position Sensor, but when I look in my manual it outlines the sensor replacement procedure for all 2016 FXD EXCEPT mine which is 2016 Dyna Low Rider S (Throttle by wire) - how do I replace the sensor?

Some background: I recently installed new cams and had to unplug the wire that goes to the TBW unit behind the air-cleaner in order to remove the pushrod tube. Of course I washed the bike with it unplugged, but dried it out and went for a ride after with no engine light or issues.

Maybe this was an ongoing issue, not really sure. Throttle response hasn't always been flawless.. or maybe I'm getting paranoid now..HAH

Any/all guidance is appreciated!

 

A 16 Low Rider has Throttle Cables.

https://partsfinder.onlinemicrofiche...vidsonmc/1114#

 

The '16 and '17 FXDLS does have tbw.

 

When the code sets, it's more a phantom code when the light goes out. It goes something like this:
1. Sensor disconnected. Is it?
2. Wire out of connector. Is it?
3. Short. Fuse blow?
4. Open. Somewhere in the wire harness.
5. Signal out of range.

It has to meet anyone of those or it's considered a phantom code. In other words, it has to flat out hard code with 1 of the 5 variables. Hey, can't be out of range if it clears the dash. But I can't stop you from throwing parts at it and the phantom still occurs.

The example would be a guy had a cam sensor code but went out at the dash. Came back on, went off. I said can't be a cam sensor out of spec if the code cleared. His tone wheel at the crank sensor loosed up was the cause. Bought a cam sensor and didn't solve it.

Signed,
NOLTT (no one listens to turtle)