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Hello Dears


307, 1.4, 2003, 1.4, manual


I am trying to bypass the downstream O2 sensor in my car. I have successfully bypassed the upstream one using a capacitor and a resistor as follows:

http://i160.photobucket.com/albums/... SE-L/Maintenance/Rear O2 Delete/o2bypass.gif

While this didn't work on the downstream sensor!!, I still got P0141 what I need to know is the following:

1- Is there any difference between the upstream and downstream sensors wires?.

2- After some troubleshooting it might be the wires. Where the downstream wires end up?, is it in the ECU? where exactly in the ECU?.

3- Does the P0141 causing the car to operate in the open loop?.
 
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