Bill McNeil
Registered User
I ran codes on the Thunderbird today after getting periodic check-engine light blinking since my last dyno run (2 weeks ago). Since almost every code from 171 to 189 deals with o2 sensor faults, I need someone to explain what is happening in plain english. Here are the codes I'm getting, and their book descriptions:
CODE 179 - OXYGEN SENSOR FAULT, UNABLE TO SWITCH / RICH during part throttle BANK #1
CODE 188 - OXYGEN SENSOR FAULT, UNABLE TO SWITCH / LEAN during part throttle BANK #2
Are these codes related, or just coincidental?
Does this mean they are faulty and need replacing, or that they are reading a certain condition during part throttle that is not normal, and the computer is reporting back on this condition?
Thanks in advance,
CODE 179 - OXYGEN SENSOR FAULT, UNABLE TO SWITCH / RICH during part throttle BANK #1
CODE 188 - OXYGEN SENSOR FAULT, UNABLE TO SWITCH / LEAN during part throttle BANK #2
Are these codes related, or just coincidental?
Does this mean they are faulty and need replacing, or that they are reading a certain condition during part throttle that is not normal, and the computer is reporting back on this condition?
Thanks in advance,