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Lambda Sensor: How to esclude it - ETP Solutions
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Lambda Sensor: How to esclude it

Sonde Lambda, Sensor Lambda, Lambdasonde, Sonda Lambda Sensor

WHAT IS THE FIRST Lambda Sensor?

The Lambda Sensor is a sensor installed in the muffler that detects the amount of oxygen present in the exhaust gases.

In petrol engines its operation is essential because the control unit regulates the fuel mixture of the engine thanks to the values of the lambda probe. The power and the engine speed are managed by the butterfly, so the air is the main element to give or less power. The first lambda probe performs thousands of checks every second to avoid the carburation is fat (thus greater consumption and pollution), or is lean (high temperatures in the combustion chamber, engine failure). In petrol engines can not be excluded the first lambda probe. In diesel engine is the diesel the main element to give or less power, regardless of the quantity of air, in this case the lambda serves only as a limit for the pollution and can be safely handled or excluded.

WHAT IS THE SECOND Lambda Sensor?

Between the first and second lambda sensor there is the catalytic converter. The second lambda probe serves as verification of the catalyst on the basis of the values readed from the first lambda probe. The control unit is able to verify the efficiency of the catalyst by comparing the data of the two lambda probes.

I HAVE INSTALLED A SPORTS EXHAUST AND THE ECU IS IN ERROR:

Sports exhausts are equipped with better performing catalysts than those of series or they can be completely free or direct, so no catalyst. In each of these cases it might occur the presence of errors in the control unit related to the lambda probe. To avoid this problem can be excluded the second lambda probe by the ECU programming.

LIST UNIT WHERE CAN WE EXCLUDE THE LAMBDA SENSOR:

Alfa Romeo
BOSCH MED7.1
BOSCH MED7.6.1
BOSCH ME7.3.1
BOSCH ME7.9.10
BOSCH MED17.3.1
MARELLI MM8


Bentley
BOSCH ME7.1.1


BMW
BOSCH ME17.2.1
BOSCH MEV9.4.6
BOSCH MEV17.4.6
BOSCH MEVD17.2.4
BOSCH MEVD17.4.6
SIEMENS MS42
SIEMENS MS43
SIEMENS MS45
SIEMENS MSS52
SIEMENS MSS54
SIEMENS MSS60 (M3)
SIEMENS MSS70
SIEMENS MSD80
SIEMENS MSD81
SIEMENS MSV70
SIEMENS MSV80


Chevrolet
BOSCH ME7.9.9
DELCO E7x
DELCO E8x


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)


Ferrari
BOSCH MED17.3.5


Fiat
BOSCH MED7.6.1
BOSCH ME7.9.10
BOSCH MED17.3.1
MARELLI MM8


Ford
BOSCH ME9.0C
BOSCH MED17


Honda
SIEMENS ME7.9.3


Hyundai
BOSCH ME17.9.11
SIEMENS SIM2K


Kia
BOSCH ME17.9.11


Land Rover
BOSCH ME7.2
DENSO (PETROL ONLY)


Lancia
BOSCH ME7.9.10


Maserati
BOSCH ME7.3.2
BOSCH ME7.9.3


Mazda
HITACHI MEC33

Mercedes
BOSCH ME2.8.1
BOSCH ME9.7
BOSCH MED17.1
BOSCH MED17.1.1
BOSCH MED17.2.2
BOSCH MED17.7.1
BOSCH MED17.7.4


Mini
BOSCH ME9.2
BOSCH MEVD17.2.2

BOSCH MED17.2


Mitsubishi
DENSO (PETROL ONLY)


Opel
BOSCH ME1.5.5
BOSCH ME7.6.x
BOSCH ME9.6
BOSCH ME9.6.1
DELCO E39 (1.4T, 2.0T)
DELCO E7x
DELCO E8x
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
SIEMENS SDI3


Renault
SAGEM S3000
SIEMENS EMS31x0


Suzuki
BOSCH ME9.1
BOSCH ME9.6.1


Toyota
BOSCH M7.9.5
BOSCH ME7.9.52
DENSO


VAG (Volkswagen, Audi, Seat, Skoda)
BOSCH EDC17CP14
BOSCH MED9
BOSCH MED9.1
BOSCH ME7.1.1
BOSCH ME7.5
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
SIEMENS SIMOS 8
SIEMENS SIMOS 8.3
SIEMENS SIMOS 18


Volvo
BOSCH ME9