We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.
I had a test done at local auto-parts store that showed a code of PO138. They told me this indicates a problem with the oxygen sensor. I replaced the oxygen sensor and the light never went out. I ...
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Ignoring your check engine light can get very expensive very fast—here are the most common reasons
When driving, the Check Engine light is one of the most anxiety inducing dashboard warnings, and in 2025 its importance has ...
The MAP sensor is an important part of a car's operating system. But lots of things can make it go bad. Here's how you'll ...
Add Yahoo as a preferred source to see more of our stories on Google. Q: In my vehicle, the check engine light comes on and then goes off and it is now back on. I had a test done at local auto-parts ...
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