How to change lambda probe

Lambda probe – oxygen sensor is an element of the power supply system for injection vehicles. The purpose of this device is that it shows the ratio of the overrun air in the fuel / air mixture. The rejection of a lambdaprobeor a disruption in its work can occur at the branch circuit connection circuit, blockage by combustion products of gasoline, thermal overload and mechanical damage, for example, when riding on the road.

You will need

• Lambda probe tools

Instruction

1. Diagnose the problem, make sure that the lambdaprobe inoperable. If the lambdaprobe is broken, the co content in the exhaust increases with 0.1-0.3% to 3-7%. Other symptoms of failure of the oxygen sensor is the deterioration accelerating dynamics, changing idle and increased fuel consumption.
2. In most cases the lambdaprobe stops working because of a Deposit that accumulates on the sensor under the protective cap. You can try to remove the plaque to restore the sensor performance. The sensor was washed in phosphoric acid for 10-20 minutes. It eats away dirt, but does not destroy the electrodes and metals. After washing, the sensor must be rinsed and dried. The threads should be lubricated with Assembly paste. If the sink does not work, the lambdaprobe must be replaced.
3. Remove the battery terminal. Locate lambdaprobe, cut the connector so that the wire that goes from the connector, was approximately twenty centimeters. Remove the old probe, it is necessary to put a new sensor pre-cleaning the wire. The installation must be extremely careful, take care not to damage the wires coming from the lambdaprobe. Cleaning the wiring on the connector, with conductors supplied, you need to perform the join. After connection, the wires must be insulated. Ready connector connecting the lambdaprobeand can be wear the battery terminals.
4. Changed lambdaprobe, observe the precautions that will help to increase its life. In particular, greatly reduce the service life of the sensor poor oil-removable rings, the penetration of antifreeze in the cylinders, and the exhaust duct, the concentrated fuel-air mixture.
5. Change the lambdaprobe, as required by the rules of operation. For nepodporovany – every 50 to 80 thousand kilometers, heated every 100 thousand kilometers, planar for every 160 thousand. Timely replacement of the sensor will save up to 15% of fuel, reduce exhaust emissions, will help to preserve the dynamic characteristics of the engine.