O2 sensor lambdasonde too high

An oxygenis a sensor based on optical measurement of the oxygen concentration. O2 sensor is mounted in the exhaust manifold to monitor how muchunburned oxygen is in the exhaust as the exhaust exits the engine. For heated lambda sensors (will have 3 or more wires) another simple test is to check the integrity of the heating element.

Causes can be a mixture that is too fuel-rich or the result of damage to the sensor heater. A P0158 refers to a fault at the post-cat o2 sensor on bank 2 (second sensor back on bank 2), indicating that the signal voltage is too high.

The heating will be permanently enabled in such cases and the heater signal should be in the range of 0 to 0. The oxygen sensors (also called O2 sensors) are one of the most important elements of the modern fuel injection systems.

O2 sensors) are one of the most important elements of the modern fuel injection systems. The lambda sensor is also referred to as the Oxygen (O) sensor plays a very important role in the control of exhaust emissions on a catalytic equipped vehicle. This Bosch Lambda sensor is used with aftermarket engine management systems around the world. Sensors exposed to exhaust gasses with too high amount of un-burnt fuel can lead to misleading readings. P0132 and P0138 - OBD-II Trouble CodesOur emissions expert has put together the following information about the P0132 and P0138 fault code. Air Fuel Ratio Sensor remained in a rich-biased mode for too long (varies with vehicle make and model). The car eventually will get too rich or too lean because it isn’t using the oxygen sensor anymore. The oxygen sensor (also known as a lambda sensor) tells the engine management how to alter the fuelling based on what gases are currently coming out of the engine. Go as high as you can then place a secondary support under the car to act as a backup if anything goes wrong. P0141 - Powertrain O2 Sensor Heater Circuit (Bank 1 Sensor 2).