2 votes

Corolla oxygen sensor welded to manifold, engine light goes off when parked nose up

As far as it being "glued" to the manifold, O2 sensors are made to be replaced, so it being glued to the manifold seems weird to me. It should thread into the manifold so it can be removed ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
1 vote
Accepted

O2 vs Air/Fuel Sensors?

To answer your question- No you do not have a choice on which sensors go where. On your Toyota 2 air fuel ratio sensors go upstream and 2 narrow band sensors go downstream.The emissions label I ...
Bill Sullivan's user avatar
1 vote
Accepted

Driving without the second lambda sensor

Drilling a hole and welding a new bung into place for the O2 sensor seems like your best course of action. Yes it can be done and that's what I'd do to fix the situation.
Pᴀᴜʟsᴛᴇʀ2's user avatar
1 vote

Trying separate the Oxygen Sensor electrical connector

Push the two halves of the sensor connector together. Press the button on the sensor side. While pressing the button, pull the connector apart. It should really be that easy. The green arrow is ...
Pᴀᴜʟsᴛᴇʀ2's user avatar

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