Join Now
International Automotive Technicians Network

P0155 Diagnostic Trouble Code Discussion for September 2005

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0155
Help Request Posted
1997 Mercury Cougar XR-7 3.8L Poor Idle Quality, MIL Lamp on VIN: 1MELM6242V
P0155: ho2s21 heater circuit fault. customer came in with the vehicle not running - car would start but then die right away. we replaced the converter assembly (3 converters - all plugged). now the car starts and runs but the idle doesn't seem right and the check engine light comes on right away...
September 20, 2005
1997 Mercury Cougar XR-7 3.8L Poor Idle Quality, MIL Lamp on VIN: 1MELM6242V
P0155: ho2s21 heater circuit fault. customer came in with the vehicle not running - car would start but then die right away. we replaced the converter assembly (3 converters - all plugged). now the car starts and runs but the idle doesn't seem right and the check engine light comes on right away...
September 21, 2005
1999 Ford Expedition Eddie Bauer 4.6L MIL Lamp on VIN: 1FMRU1767X
P0155: o2s htr fault b2s1. ... 10 codes from this one and they dont seem to even be related.po135/po155/p1451/po443/p1460/p1780/p1127/p1000/p15 49/ p1409.i cleared codes and drove it and they all came right back.please ...
September 27, 2005
1997 Mercury Cougar XR-7 3.8L Poor Idle Quality, MIL Lamp on VIN: 1MELM6242V
P0155: ho2s21 heater circuit fault. customer came in with the vehicle not running - car would start but then die right away. we replaced the converter assembly (3 converters - all plugged). now the car starts and runs but the idle doesn't seem right and the check engine light comes on right away...
September 20, 2005
1997 Mercury Cougar XR-7 3.8L Poor Idle Quality, MIL Lamp on VIN: 1MELM6242V
P0155: ho2s21 heater circuit fault. customer came in with the vehicle not running - car would start but then die right away. we replaced the converter assembly (3 converters - all plugged). now the car starts and runs but the idle doesn't seem right and the check engine light comes on right away...
September 21, 2005
1999 Ford Expedition Eddie Bauer 4.6L MIL Lamp on VIN: 1FMRU1767X
P0155: o2s htr fault b2s1. ... 10 codes from this one and they dont seem to even be related.po135/po155/p1451/po443/p1460/p1780/p1127/p1000/p15 49/ p1409.i cleared codes and drove it and they all came right back.please ...
September 27, 2005