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P0141 O2 and P0140 O2 Oxygen Sensor Errors

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08.05.2020 21:09 # 1
Begruzi
Hello friends ,

I am fed up with the oxygen sensor error that turns into a nightmare on Peugeot 307 vehicles, especially on LPG vehicles.

Even though there is no performance loss or working problem in my vehicle, I am fed up with the antipollution fault warning and the constantly burning engine fault light. Extinguishing with OBD2 device is not a solution, it is still burning, anyhow and I cannot find a permanent solution.

It is expensive to replace oxygen sensors financially, but I tried to change the top oxygen sensor first, the price of 290 TL was not eliminated.

Now my question is, for which sensor P0141 O2 and P0140 O2 errors apply? O2 means the 2nd sensor, that is, the sensor at the bottom, which is on the exhaust side, whereas the upper sensor was changed and I made a wasted cost now. Why would you say there is a mistake in that piece?

I leave the screenshot below, should I change the lower sensor, just in the extra rank that the engine fault light goes on and I am tired of the car whether it gives antipollution fault warning.



08.05.2020 21:09 # 2
Begruzi
The problem has been solved, we changed the lower oxygen sensor, when we connected it to the pp2000 device, the lower oxygen sensor was not receiving any movement, now it is fixed at 45 48 volts. It is announced to those who have problems.
08.05.2020 21:09 # 3
Frt-Aydin
glad to solve the problem

In some cases, since the gas setting is brought to low levels in lpg vehicles, it shows low value, it is like damn sensors and malfunctions but the sensor is not broken and get additional information
08.05.2020 21:09 # 4
Frt-Aydin
[QUOTE = Begruzi] Hello friends,

I am fed up with the oxygen sensor error that turns into a nightmare on Peugeot 307 vehicles, especially on LPG vehicles.

Even though there is no performance loss or working problem in my vehicle, I am fed up with the antipollution fault warning and the constantly burning engine fault light. Extinguishing with OBD2 device is not a solution, it is still burning, anyhow and I cannot find a permanent solution.

It is expensive to replace oxygen sensors financially, but I tried to change the top oxygen sensor first, the price of 290 TL was not eliminated.

Now my question is, for which sensor P0141 O2 and P0140 O2 errors apply? O2 means the 2nd sensor, that is, the sensor at the bottom, which is on the exhaust side, whereas the upper sensor was changed and I made a wasted cost now. Why would you say there is a mistake in that piece?

I leave the screenshot below, should I change the lower sensor, just in the extra rank that the engine fault light goes on and I am tired of the car whether it gives antipollution fault warning.



[/ QUOTE]

in your mind, you will not have to spend unnecessary expenses
our pejo delicate cars do not send accurate information or dot information to every test device
the healthiest is to look at the fault record with the pp2000 program, if necessary, follow the recurrence and proceed accordingly.
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