2003 Totota Avalon with 34,000 miles. Check engine light on and was told due to PO155 02 Sensor Heater Circuit fault B251. Mechanic quoted $540 to fix, Jiffy Lube $340 and dealership $280. Who is correct?
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Fuse cost $1.00 - max.
â–ªï¸From owners manual - 15. A/F 25 A: Air/fuel sensorâ–ªï¸
Under hood fuse box - fuse # 15
Front sensors are Air Fuel (AF) sensors .. Rear sensors are oxygen (02) sensors.
People mistakenly call ‘ALL’ of them 02 sensors .. Which is only partially correct.
Fuse cost $1.00 - max. â–ªï¸From owners manual - 15. A/F 25 A: Air/fuel sensorâ–ªï¸ Under hood fuse box - fuse # 15 Front sensors are Air Fuel (AF) sensors .. Rear sensors are oxygen (02) sensors. People mistakenly call ‘ALL’ of them 02 sensors .. Which is only partially correct.
That concludes today’s lesson - class dismissed.
Lol...Thank you so much Pushrod....Your the best professor!!