an 02 sensor is a piezoelectric sensor which creates a voltage based on the amount of oxygen present in the exhaust. this lets the engines computer know how rich or lean the engine is running and adjust accordingly
Replace the Downstream O2 sensor (after the catalytic converter)
Wire diagram for 02sensor on 95 Chevrolet tahoe
That would be the O2 sensor located in the exhaust system after the catalytic converter.
Sensor 1 is screwed into the front of the catalytic converter. Sensor 2 is screwed into the pipe after the catalytic converter.
Bank 2 is the drivers side of the engine and I believe the oxygen sensor is in the outlet of the exhaust manifold ( if it isn't it will be in the exhaust pipe close to the engine )
Bank 1 is the left or front exhaust manifold. Open the hood and look straight down. It should be screwed into the manifold before it bends under the engine.
living proof29s here, as i work in the within the automotive repair field (not a mech.) i can tell you that it is possible, i have seen a 98 2.3 with 212,000+ come by but it is not common. he was the only owner and took good care of the vehicle. and i have seen a 2.5 with 179,000+. the question is can you get more than 70,000 miles out of any of the front wheel bearings? not to my knowledge. i HAVE A 1995 MILLENIA 2.5,I GOT 114,000MI.my wheel bearing are still smooth,butti just replaced the tranny due 2 all the snow we had in baltimore,now im runnin strong again with 1 trouble code 02sensor..
My suggestion is to replace the IAC (Idle Air Control) or at least take it apart and clean it. MAny people have had problems with this part including myself. Idle acts irradicly high ,low ,wont idle . check it out and go to team3s.com for more advice and detailed answers
Yes, a faulty oxygen sensor can potentially contribute to trouble code P0125, which indicates insufficient coolant temperature for closed-loop operation. If the oxygen sensor is malfunctioning, it may not provide accurate data to the engine control module, leading to improper fuel mixture adjustments and affecting engine temperature readings. However, P0125 is primarily related to the coolant temperature sensor or thermostat issues, so it's essential to diagnose the problem thoroughly.
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A calendar at your work, for your work, that has your work schedule on it, etc.