Possible signs of a faulty oxygen sensor. Oxygen sensor: replacement, inspection, fault


2018-03-22 13:32:16




1Like 0Dislike


Table of contents:

The Exhaust system of the car gradually modernizarea. And it concerns not only the installation of catalysts and particulate filters designed to clear fumes from lead and other harmful substances. In addition, modern cars are equipped with oxygen sensor. People call it lambda probe. What is the oxygen sensor? Replacement, inspection, fault – further in our article.


Learn why the need for this element, knows not every motorist. Lambda probe – a sensor that reads the information about the exhaust gases and sends it to the ECU. the signs of a faulty oxygen sensor

The collected information is processed in the unit, then the unit balances the air-fuel mixture, in order to align the procedure for its combustion in the cylinders.

Install types

Is the element in the exhaust manifold (the so-called “spider”), which are connected to the exhaust pipes. In some cases, the sensor is installed closer to the catalyst. But this arrangement does not affect the overall performance of the device. There are several types of oxygen sensors:

  • Broadband type.
  • With dual-channel layout.

Last mounted on older cars (up to 90-ies of the issue). Modern cars fitted with a lambda probe broadband type. This sensor is able to precisely determine variations in the composition of the exhaust gas and quickly to balance this ratio by increasing or decreasing oxygen in the mixture. Serviceable sensor is capable of reducing fuel consumption. Its work focused on keeping the optimum rpm at idle.

Why fails oxygen sensor («Kalina»)

The Symptoms may be different. First of all it concerns the quality of the combustible mixture. Various deposits can aggravate the job of the oxygen sensor. Also an element of network failures due to depressurization of the body. how to check lambda probe oxygen sensor


"IZH 350 Planeta Sport" – frisky Soviet bike

It is believed that of the entire line of Soviet motorcycles "IZH" truly sporty just one. It is easy to guess that it was "IZH 350 Planeta Sport".History motorcycleIn 1973 the factory "Izhmash" was made a real breakthrough: the line went down the fir...

How does the rear bushing front arm and how many it serves?

How does the rear bushing front arm and how many it serves?

The Rear bushing front arm – one of the constituent elements of the vehicle chassis. He refers to the guide elements of the suspension together with the levers endures tremendous stress with wheels. However, with this this item, there are many ...

Oil consumption in the engine. Six reasons

Oil consumption in the engine. Six reasons

It is Hardly possible to find a motorist who would not be worried about the increased oil consumption. It is especially annoying when it happens with another new motor. Here are the most common causes that result in the consumption of oil in the engi...

This often happens due to the obsolescence of the item. Less body is damaged by mechanical means, as it is located in a fairly safe place. Another reason – the wrong power supply. The contacts of the sensor may deviate, resulting information to the control unit is supplied correctly. Disturbed composition of the fuel-air mixture (too rich or poor). Another cause of trouble – incorrect lead angle. This applies to cars with a distributor ignition system. Disruptions can occur due to problems with high voltage wires or candles. Motor starts troit at idle and not work properly at high rpm.

How to determine the problem?

Consider the possible symptoms of oxygen sensor:

  • Increased fuel consumption.
  • Jerks while driving.
  • A Noticeable drop in power.
  • Unstable operation of the engine at idle.
  • Increased exhaust emissions.

Note that these signs don't always happen because of oxygen sensor. Kalina oxygen sensor symptoms

Therefore, identifying one of the above symptoms, proceed to a more detailed verification of the device. How to do this, consider the following.

Detailed diagnostics

How to check lambda probe (oxygen sensor) with your hands? This can be done in two ways:

  • Visually.
  • With the help of a multimeter.

First, let's consider the first method. So, first remove the connector from the lambda probe. Inspect all contacts. Wire must not have any breaks or damage. If the contacts are not adjacent to each other tightly, need to fix this. Next, check the oxygen sensor. "prior" signs of sensor failure which can be the presence of soot need to be repaired. oxygen sensor prior to symptoms

This is due to the combustion of the rich fuel mixture. Because of this, the device is contaminated and cannot respond quickly to all changes. In the presence of shiny deposits (lead), replaced oxygen sensor. Lead damages the probe and the catalyst. What are the signs of a faulty oxygen sensor? The lead talks about using extra fuel additives or poor-quality engine oil.

Diagnostics multimeter

How to check lambda probe (oxygen sensor) with a multimeter? For this we need to attach the signal wire from oxygen probe pads to our measuring device. Next, start the engine and keep the revs in the region of 2.5 thousand. Let go of the gas pedal. Pull the vacuum hose from the fuel regulator and look at the readings. possible signs of a faulty oxygen sensor

If the voltage is less than 0.8 In (or absent), symptom of the oxygen sensor was confirmed. Repair it does not make sense. Due to the structural features of the element should only be replaced. The cost of this element ranges from two to three thousand rubles for the VAZ cars. How to change the oxygen sensor yourself, seeon.

Replace with your own hands

First, disable the terminal on the battery. Next, disconnect the connector from the sensor itself. Sometimes it is attached with clamps – we also turn off. Then take up the key “22” or “24” (depending on car brand) and Unscrew the probe. Please note that the sensor is in the exhaust system and, accordingly, operates under extreme loads. The first attempt to Unscrew it very difficult. A universal lubricant WD-40. Be careful not to damage the threads and the face of the stuck sensor. In a pinch you can use a hammer, screwdriver and alligator wrench.
oxygen sensor replacement check malfunction

Light blows to move the item from side to side. Can podkovyrnut it with a screwdriver. If this does not work, drill pilot drill the hole in the probe to place the screws. Insert a screwdriver inside and try to retrieve it back. This should help. In place of the old item a new spin. Try to keep the item tightly to the surface of the pipe of the exhaust manifold (do not overtighten).


Now, we find out the main symptoms of faulty oxygen sensor. Lambda probe – a very small but important item in the car. Its malfunction can cause a serious disruption in the operation of the engine. Therefore, it is important to diagnose the failure.

Article in other languages:

AR: https://tostpost.com/ar/cars/2765-possible-signs-of-a-faulty-oxygen-sensor-oxygen-sensor-replacement-ins.html

BE: https://tostpost.com/be/a-tamab-l/4899-magchymyya-prykmety-nyaspra-nasc-datchyka-k-slarodu-datchyk-k-slarodu-.html

DE: https://tostpost.com/de/autos/4898-m-gliche-fehlerhafte-sauerstoff-sensor-sauerstoff-sensor-ersatz-kontro.html

ES: https://tostpost.com/es/coches/4903-posibles-s-ntomas-de-fallo-del-sensor-de-ox-geno-el-sensor-de-ox-geno-.html

HI: https://tostpost.com/hi/cars/2766-possible-signs-of-a-faulty-oxygen-sensor-oxygen-sensor-replacement-ins.html

JA: https://tostpost.com/ja/cars/2765-possible-signs-of-a-faulty-oxygen-sensor-oxygen-sensor-replacement-ins.html

KK: https://tostpost.com/kk/avtomobil-der/4901-y-timal-belg-ler-a-au-datchik-otteg-datchik-otteg-auystyru-tekseru-a-a.html

PL: https://tostpost.com/pl/samochody/4902-mo-liwe-objawy-awarii-czujnika-tlenu-czujnik-tlenu-wymiana-sprawdzanie.html

PT: https://tostpost.com/pt/carros/4900-poss-veis-sinais-de-mau-funcionamento-do-sensor-de-oxig-nio-o-sensor-d.html

TR: https://tostpost.com/tr/arabalar/4906-olas-ar-za-belirtileri-oksijen-sens-r-oksijen-sens-r-de-i-tirme-kontro.html

UK: https://tostpost.com/uk/avtomob-l/4902-mozhliv-oznaki-nespravnost-datchika-kisnyu-datchik-kisnyu-zam-na-perev.html

ZH: https://tostpost.com/zh/cars/2985-possible-signs-of-a-faulty-oxygen-sensor-oxygen-sensor-replacement-ins.html

Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Motorcycle Indian: characteristics, photos, prices

Motorcycle Indian: characteristics, photos, prices

the famous Story of the company began in the summer of 1900 in a small American town. It is worth noting – long before Harley-Davidson. Motorcycle “Indian” was first produced in 1901 in the amount of 6 copies, of...

Tires Bridgestone Ice Cruiser 5000 reviews. Bridgestone Ice Cruiser 5000: specifications, tests

Tires Bridgestone Ice Cruiser 5000 reviews. Bridgestone Ice Cruiser 5000: specifications, tests

when Choosing winter tires for your car, every driver tries to find the one that would correspond to his concepts of quality and reliability. This is re-read a large number of thematic resources, but often they can see only the of...

One of the most modern minivans is the Opel meriva. The reviews confirm this

One of the most modern minivans is the Opel meriva. The reviews confirm this

the Range of Opel consists of a large number of cars, each of which is individual. Big Antara and Corsa compact and Meriva minivan even. On it, we now stop the attention. The Opel Meriva is a modern, high-tech and high-quality car...

The second generation IL

The second generation IL "heel"

In the mid 60-ies of the growing share of exports in production program at the AZLK plant created a shortage of cars in the domestic market. The growth in production volumes at AZLK was limited by the capacity of the plant. And in...

Front bumper. Manufacturing and features

Front bumper. Manufacturing and features

Modern manufacturers make bumpers that provide an additional level of security for both car and pedestrians. The materials from which the manufacture of these parts gives them increased strength. today car factories, which additio...

The correct size of brush

The correct size of brush "Solaris" – the key to a clean windshield

the windshield Wipers are inoperable, and you don't know what should be the size of the brush to “Solaris”? Then read the review, which States the dimensions of the elements of a wiper for a vehicle and the principles ...