Got a Code P0152 Engine Running Rich (rear)

[hardwickbv]

2017 Tri Glide

Have had this pop up a couple times in the last week.

Sensor?

Or something else?

Thanks for any help.

Bob

 

[Jack Klarich]

Look here, it should already be a Sticky in Triglide, and other Harley Forums here @ Trike Talk

https://wilkinsharley.com/checking-trouble-codes-harley-davidson

 

[Koolbreeze]

2017 Tri Glide

Have had this pop up a couple times in the last week.

Sensor?

Or something else?

Thanks for any help.

Bob

Could be your rear O2 sensor per the code. I would unplug and remove the O2 sensor, clean it,and reinstall. Then go from there unless you have the tools to check the resistance of the sensor.

 

[ctdair]

I had the same code last year. Troubleshooting per manual said replace ECM. Past experience I believe the sensor was breaking down when warm. Reset code watched for return and until good warm day hard riding code came back. Once again static testing said sensor good replace ECM. I took my experience from past and replaced sensor and not ECM. Been running fine ever since. I wouldn’t just change the sensor with out checking things per manual.

 

[Jack Klarich]

O2 sensor not reading right, replace it

The ECM is fine, the O2 sensor is failing

 

[Jack Klarich]

Clean an O 2 s

Could be your rear O2 sensor per the code. I would unplug and remove the O2 sensor, clean it,and reinstall. Then go from there unless you have the tools to check the resistance of the sensor.

ensor is a waste of time and does nothing to change that the sensor has failed, it will continue to fail