Last reported case: 2 months ago
Based on 3 owner reports, 3 from forums)
What is P0155?
P0155 indicates a problem with the oxygen sensor heater circuit on Bank 2 Sensor 1, which can affect fuel efficiency and emissions. This is a medium-severity powertrain issue that commonly triggers the check engine light. Based on real data, this code appears frequently in Ford Mustangs, with repair costs averaging $2685.
Common Causes:
- Faulty oxygen sensor heater element (most common cause)
- Damaged wiring or connectors in the O2 sensor circuit
- Blown fuse or relay for the O2 sensor heater circuit
- PCM/ECU issues affecting sensor power supply
Symptoms:
- Check engine light illuminated (universal symptom)
- Reduced fuel economy due to improper air-fuel mixture
- Possible rough idle or hesitation during acceleration
- Failed emissions test due to O2 sensor malfunction
🚗P0155 on 2010 FORD F-150
This page focuses specifically on P0155 issues reported by 2010 FORD F-150 owners. The experiences and fixes below are from real owners of this exact vehicle.
Parts Often Involved:
What Owners Say
Real experiences from 2010 FORD F-150 owners
“Any ideas what else I can test what could be causing the issue before I start tearing the entire wiring harness apart? From what I've already traced, the wiring looked fine.”View original
“At one point the bank 2 sensor was stuck at .9v which is why I'm assuming it was rich. Any ideas what else I can test what could be causing the issue before I start tearing the entire wiring harness apart?”View original
“The heater is getting a constant 12v of power from the harness. I'm still curious about the resistance between heater wires on the harness side.”View original
“I'm still curious about the resistance between heater wires on the harness side. I feel like it should not be reading 14 to 18ohms.”View original
These are real experiences shared by 2010 FORD F-150 owners on automotive forums and communities. Results may vary based on vehicle condition and repair quality.
About This Data
This page aggregates 3 discussions about P0155 from 2010 FORD F-150 owners across automotive communities.
Success rate (0%) is calculated from posts where owners confirmed whether their fix resolved the issue.
Last updated: 12/15/2025