Replace front o2 sensor procedure - Very Easy or Easy? (1 Viewer)
- Thread starter jl0810
- Start date
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My guess is it is telling you you have triggered two codes. First you had a pending fault code and then the same code turned into a hard fault code. They are listed in chonalogical order with the most recent one first. Hence, the pending code is shown as #2 of 2 and the more recent hard code is shown as #1 of 2. They are both the same issue.
My first check engine light since purchasing from original owner in 2018 at 188k miles, a good 5 years later.
I did have one check engine light early in the purchase, but I replaced gas cap and never again came back, in hindsight might have actually been related to these old o2 sensors, who knows!
replaced both o2 upstream sensors, those damn tabs were the worst took me a good hour of trying all angles and using flat head screw driver but I finally got both out, the o2 sensors were hand tight I was able to just use my hands to unscrew, have to love California rigs.
Let's hope that's my last check engine light for another 5 years.
I did have one check engine light early in the purchase, but I replaced gas cap and never again came back, in hindsight might have actually been related to these old o2 sensors, who knows!
replaced both o2 upstream sensors, those damn tabs were the worst took me a good hour of trying all angles and using flat head screw driver but I finally got both out, the o2 sensors were hand tight I was able to just use my hands to unscrew, have to love California rigs.
Let's hope that's my last check engine light for another 5 years.
replaced both upstream o2 sensors proactively after getting a fault code for bank 1 sensor 2 downstream sensor p0037 (replaced this one too). the sensors were likely original and looked pretty tired.
