G3 Lambda Sensor - 1.4-1.8

This regulating lambda (oxygen) sensor fits before the catalytic converter and is responsible for continuously monitoring exhaust oxygen content. The signal is used by the ECU to precisely adjust the air–fuel mixture, keeping the engine running smoothly while maintaining correct emissions and fuel economy.

A worn or slow-responding pre-cat lambda sensor can cause high fuel consumption, hesitation, rough idle, flat spots, and emission test failures. This direct-fit 4-pin sensor restores proper closed-loop control and is ideal for routine maintenance or fault rectification.

Technical Details

• Sensor type: Regulating oxygen (lambda) sensor

• Fitting position: Before catalytic converter (pre-cat)

• Number of pins: 4

• Cable length: 450 mm

• Function: ECU fuel mixture regulation

Vehicle & Engine Fitment Summary

VW Caddy II

• 1.4 Petrol – 11/1995 to 06/2009

• 1.6 Petrol – 11/1995 to 06/2009

VW Golf Mk3

• 1.4 Petrol – 08/1991 to 12/1999

• 1.6 Petrol – 08/1991 to 12/1999

• 1.8 Petrol – 08/1991 to 12/1999
  (Hatchback & Estate)

VW Passat B3/B4

• 1.8 Petrol – 02/1988 to 05/1997
  (Saloon & Estate)

VW Passat B5 (3B)

• 2.8 Petrol (VR6) – 08/1996 to 11/2000
  (Saloon & Estate)

VW Polo 6N

• 1.0 Petrol – 10/1994 to 09/2001

VW Polo Classic 6V2

• 1.4 Petrol – 11/1995 to 07/2006

• 1.6 Petrol – 11/1995 to 07/2006

VW Vento

• 1.4 Petrol – 55–60 PS

• 1.6 Petrol – 75 PS

• 1.8 Petrol – 75–90 PS