What is your question?
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What is your question?
I replaced driver side oxy sensor and cleared the code car runs much better, but light came back on. Also on same fail is three blinking blue dots. Can only remember one. Its for an oxy sensor heat modulator. ?? What the? Any advice to get me past ca. Smog inspection would be welcome. Thanks. Rick Fodge..
1 Reply
Most likely the mass air flow sensor that tripped the P0171.
Checked the mass air flow sensor. It was clean, but removed it and cleaned it with air flow cleaner anyway. I inspected the exhaust more closely and noticed a broken stud and pretty good air leak on the flange between the upper sensor and the cat. The leak is about 2 inches from the upper oxy sensor. Will the leak trip the p0171 code??