HarleyTechTalk

Technical Forums => General => Topic started by: 838 on September 17, 2019, 08:27:31 PM

Title: P0134 code troubleshooting
Post by: 838 on September 17, 2019, 08:27:31 PM
Bike is throwing p0134. Using power vision in data log mode you can see the sensors are on and functioning, but the VE and VE new are identical numbers as though the sensors are reading, but not responding to the changes in VE... I'm stumped... If an admin can dual post this in afr/tuning section I'd appreciate it, or any tips/help. This ones frustrating the heck out of me!!!  :banghead:
Title: Re: P0134 code troubleshooting
Post by: Ohio HD on September 18, 2019, 03:21:02 AM
Read the site rules, there is no dual posting of topics allowed.
Title: Re: P0134 code troubleshooting
Post by: Pirsch Fire Wagon on September 18, 2019, 03:28:34 AM
"Rear Oxygen Sensor Inactive"
What year?
There are two types. One Heated, One not. Either way you need to confirm 12v Power AND Ground) and 5vdc Reference Circuit is signalling the Sensor. If it's 4 Wire, confirm Heater Voltage and Ground. If all that checks out, replace the Oxygen Sensor. Check the Connectors and clean.