Kuidas ma saan testriga mahavõetud lambda anduri korrasolekut kontrollida ? Nelja juhtmega oli vist, või kolme, võin hiljem täpsustada, kui see on tähtis....

testriga sa seda päris ei saa mõõta,aga ostsilloskoobiga saad küll.

Testing 02 sensors on the workbench.

Warning: When testing Lambda Exhaust Gas Oxygen Sensors a high impedance digital volt meter or dedicated tester must be used. A normal analogue multimeter will draw too much current and either burn out the sensor or give false readings.

Use a high impedance DC voltmeter as below. (clamp the sensor in a vice, or use pliers or vice-grip to hold it. Clamp your negative voltmeter lead to the case and the positive to the output wire. Use the propane torch set to high and apply the inner blue flame tip to heat the fluted or perforated part the sensor. You should see a DC voltage of at least 0.6 within 20 seconds. If not, most likely cause is open circuit internally or lead fouling. If OK so far, remove from flame. You should see a drop to under 0.1 volt within 4 seconds. If not likely silicone fouled. If still OK, heat for two full minutes and watch for any drops in output voltage. Sometimes, the internal connections will open up under heat. This is the same a loose wire and is a failure.

If the sensor is OK at this point, and will switch from high to low quickly as you move the flame, the sensor is good. Bear in mind that good or bad is relative, with port fuel injection (eg. Efi) needs faster information than carb systems. ANY 02 sensor that will generate 0.9 volts or more when heated, show 0.1 volts or less within one second of flame removal, AND pass the two minute heat test is good regardless of age. When replacing a sensor, don't miss the opportunity to use the test above on the replacement. This will calibrate your evaluation skills and could save you money in the future. There is almost always *no* benefit in replacing an oxygen sensor that will pass the test in the first line of this paragraph.

Maha võetud lamdal?

Testriga saab peal olevat lamdat mõõta , kui ikka mingi pinge seal kõigub , siis mingi elu selles lamdas toimub. Kas annab ka korrektset näitu saab ossiga teada jh.