Disable Lambda probe and/or O2 sensor

Cost price

euro 4: 200 euro VAT incl

euro 5: 250 euro VAT incl

euro 6: 300 euro VAT incl

euro 6 (2nd generation): 350 euro, VAT incl

We also have interesting combi rates. e.g. chip tuning + removing lambda euro 5: cost price 350 euro VAT incl.

(this price is not binding and for common diesel cars. For a correct quote, we ask you to fill in our contact form)

 

1.Lambda probe


A lambda probe is a sensor located in the exhaust of a car with a petrol engine. The probe measures the oxygen content in the exhaust gas and passes this on to the engine management system. The lambda value is an indicator of the effectiveness of the combustion. Depending on the lambda value, this is adjusted by the engine management system by adjusting the composition of the fuel and air ratio by adjusting the fuel injection, by changing the injection time of the injectors.

Vehicles after the year 2000 have a second lambda sensor behind the catalytic converter to check its effectiveness.

The probe

The sensor element is a ceramic cylinder, coated inside and out with porous platinum electrodes; the whole is protected by a metal mesh. It works due to the difference in oxygen between the exhaust gas and the outside air and generates a voltage or changes its resistance depending on the type of sensor.

The sensors are only effective when heated from approximately 316°C; that is why most lambda probes have a heating element that quickly heats up the ceramic tip. This allows faster control of the mixture composition. Older probes without heating elements are heated by the exhaust gases, but there is a longer period between when the engine is started and when the probe is at the correct temperature. Without heating, the process can take several minutes.

The probe usually has four wires, one signal wire, usually black, one ground wire (grey) and two for the heating element (white). Older, non-electrically heated, sensors had one wire (the signal wire and ground through the exhaust) or two wires (one signal wire and one ground wire).

Lambda signal

The signal from the probe to the catalyst ranges from 0.1 to 0.9 volts at resp. a lean or a rich mixture. With stoichiometric combustion of petrol this is 0.45 V, the lambda value is then 1.

Issues

It happens more and more often that problems occur in the operation of the 2nd Lambda. HS-tronic can rewrite the software so that this 2nd sensor is disabled, so that your car functions optimally again. If you have problems with the Lambda sensor, please contact us about the possibilities we can offer you.

2. O2/NOX sensor

What does a NOX sensor do?

In a NOX sensor, the NOX is separated into nitrogen and oxygen by a catalytically active electrode.
The amount of oxygen is measured in the same way as with a broadband or linear lambda sensor.

How does a NOX sensor work?

The NOX sensor has two chambers. In the first chamber (which resembles that of a broadband sensor) the oxygen content in the exhaust gas is kept at about 10 ppm by means of a so-called pump flow. The current required for this is inversely proportional to the air-fuel ratio and can be used to correct the NOX signal depending on the measured air-fuel ratio. The NOX reaction, the separation into nitrogen and oxygen, takes place in the second chamber. The current required to keep the environment of the platinum-rhodium electrode oxygen-free is proportional to the NOX concentration and thus provides the measurement signal.

Why is a NOX sensor used?

Because the FSI engine is directly injected and the combustion is relatively hotter than with normal engines, more NOX is created than is allowed for the type approval for Europe.
That is why Volkswagen had to install a NOX catalytic converter and NOX sensor that store, measure and convert these gases into less harmful gases.

What’s going wrong?

Because the NOX sensor has a limited life, it will break sooner or later. If the signal provided by the NOX sensor no longer falls within a certain bandwidth, the engine control unit will store a malfunction, causing the engine to go into emergency mode, where fuel consumption will increase and the engine will falter slightly. The engine trouble light will also illuminate. In many cases, the NOX sensor is broken.

Solution?

HS-tronic can ensure that the engine management no longer needs this sensor. We can switch this off completely for you so that the engine light no longer lights up and the car no longer runs in “limp home”. This often saves you hundreds of euros, since a new sensor quickly costs at least € 500.

For the following cars it is possible to switch off the lambda, 2nd lambda and/or NOX sensor. If your car is not listed, please contact us via the contact page or by email at sales@hs-tronic.be.

Alfa Romeo

  • BOSCH MED7.1
  • BOSCH MED7.6.1
  • BOSCH ME7.3.1
  • BOSCH ME7.9.10
  • BOSCH MED17.3.1
  • BOSCH MED17.3.3
  • MARELLI MM8

Bentley

  • BOSCH ME7.1.1

BMW

  • BOSCH ME7
  • BOSCH ME9.2
  • BOSCH ME17.2.1
  • BOSCH MEV9.4.6
  • BOSCH MEV17.4.6
  • BOSCH MEVD17.2.4
  • BOSCH MEVD17.2.6
  • BOSCH MEVD17.2.8
  • BOSCH MEVD17.2.g
  • BOSCH MEVD17.4.6
  • SIEMENS MS42
  • SIEMENS MS43
  • SIEMENS MS45
  • SIEMENS MSS52
  • SIEMENS MSS54
  • SIEMENS MSS60 (M3)
  • SIEMENS MSS70
  • SIEMENS MSD80. DISCONNECT NOx PLUG.
  • SIEMENS MSD81. DISCONNECT NOx PLUG.
  • SIEMENS MSV70
  • SIEMENS MSV80

Chevrolet

  • BOSCH ME7.9.9
  • BOSCH MED9.6.2
  • BOSCH MEVD17.4.2
  • DELCO E37
  • DELCO E38
  • DELCO E7x
  • DELCO E78
  • DELCO E83
  • DELCO E8x
  • SIEMENS SIMTEC76

Citroen

  • BOSCH M7.9.52
  • BOSCH ME7.4.4
  • BOSCH ME7.4.6
  • BOSCH ME7.4.9
  • BOSCH ME7.9.52
  • BOSCH MED17
  • BOSCH MED17.2.2
  • BOSCH MED17.4.2
  • BOSCH MEV17
  • BOSCH MEV17.4.2
  • BOSCH MEVD17.4.4
  • MARELLI IAW6LP (2.0 177 RC)

Dodge

  • CUMMINS CM21XX. LAMBDA SENSORS HAVE BE DISCONNECTED.

Ferrari

  • BOSCH MED9.6.1
  • BOSCH MED17.3.5

Fiat

  • BOSCH MED7.6.1
  • BOSCH ME7.9.10
  • BOSCH MED17.3.1
  • BOSCH MED17.3.3
  • MARELLI MM8

Ford

  • BOSCH ME9.0C
  • BOSCH MED17
  • SIEMENS EMS200
  • VISTEON EECVI (ST150 2.0)
  • VISTEON M799G

Honda

  • BOSCH ME7.9.3

Hyundai

  • BOSCH ME17.9.11
  • SIEMENS SIM2K

Infinity

  • HITACHI

Jaguar

  • DENSO. 512 KB FILES ONLY.

Kia

  • BOSCH ME17.9.11

Land Rover

  • BOSCH ME7.2
  • DENSO (PETROL ONLY)

Lancia

  • BOSCH ME7.9.10
  • BOSCH MED17.3.1
  • BOSCH MED17.3.3

Maserati

  • BOSCH ME7.3.2
  • BOSCH ME7.9.3

Mazda

  • HITACHI MEC33
  • VISTEON M799G

Mercedes

  • BOSCH ME2.8.1
  • BOSCH ME9.7
  • BOSCH MED17.1
  • BOSCH MED17.1.1
  • BOSCH MEVD17.2.1
  • BOSCH MED17.2.2
  • BOSCH MED17.7.1
  • BOSCH MED17.7.4
  • BOSCH MED17.7.5

Mini

  • BOSCH ME9.2
  • BOSCH MEVD17.2.2
  • BOSCH MEV17.2.2
  • SIEMENS EMS

Mini

  • BOSCH MED17.2

Mitsubishi

  • DENSO (PETROL ONLY)

Opel

  • BOSCH ME1.5.5
  • BOSCH ME7.6.x
  • BOSCH ME9.6
  • BOSCH ME9.6.1
  • BOSCH MED9.6.2
  • DELCO E37
  • DELCO E38
  • DELCO E39 (1.4T, 2.0T)
  • DELCO E7x
  • DELCO E78
  • DELCO E83
  • DELCO E8x
  • DELCO MT35
  • SIEMENS SIMTEC 71
  • SIEMENS SIMTEC 76

Peugeot

  • BOSCH M7.9.52
  • BOSCH ME7.4.4
  • BOSCH ME7.4.6
  • BOSCH ME7.4.9
  • BOSCH ME7.9.52
  • BOSCH MED17
  • BOSCH MED17.2.2
  • BOSCH MED17.4.2
  • BOSCH MEV17
  • BOSCH MEV17.4.2
  • BOSCH MEVD17.4.4
  • MARELLI IAW6LP (2.0 177 RC)

Porsche

  • BOSCH ME7.1.1
  • BOSCH ME7.2
  • BOSCH ME7.8.x
  • BOSCH MED17.1.6
  • SIEMENS SDI3

Renault

  • SAGEM S3000
  • SIEMENS EMS31x0

Subaru

  • DENSO (MY 200x)

Suzuki

  • BOSCH ME9.1
  • BOSCH ME9.6.1

Toyota

  • BOSCH M7.9.4
  • BOSCH M7.9.5
  • BOSCH ME7.9.52
  • DENSO

VAG

  • BOSCH EDC17_CP14
  • BOSCH MED9
  • BOSCH MED9.1
  • BOSCH MED9.5.10
  • BOSCH ME7.1.1
  • BOSCH ME7.5
  • BOSCH ME17.5.26
  • BOSCH MED7.1.1
  • BOSCH MED17
  • BOSCH MED17.5
  • BOSCH MED17.5.5
  • MARELLI IAW4MV
  • SIEMENS SIMOS 3.2
  • SIEMENS SIMOS 6.2
  • SIEMENS SIMOS 7.1. FULL READ REQUIRED.
  • SIEMENS SIMOS 8
  • SIEMENS SIMOS 8.3
  • SIEMENS SIMOS 8.5
  • SIEMENS SIMOS 12
  • SIEMENS SIMOS 18

Volvo

  • BOSCH ME9