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Automotive oxygen sensors, also known as O2 or Lambda sensors, make modern electronic fuel injection and emission control possible. They help determine, in real time, if the air fuel ratio of a combustion engine is rich or lean. Since oxygen sensors are located in the exhaust stream, they do not directly measure the air or the fuel entering the engine. But when information from oxygen sensors is coupled with information from other sources, it can be used to indirectly determine the air-to-fuel ratio this emissions control technique can reduce the amounts of both unburnt fuel and oxides of nitrogen entering the atmosphere. Volvo was the first automobile manufacturer to employ this technology in the late 1970s. A faulty Oxygen Sensor will see an increase in either tailpipe emissions, poorer fuel economy, hesitation on acceleration as well as rough idling.


O/E X/Ref. OZA448E44

Fuel Parts X/Ref. LB1031

Bosch X/Ref. 258003714

NGK X/Ref. 0293

BRIEF APPLICATION: Ford Escort, Fiesta, KA, Mondeo

BOSCH 258003714
NGK 1 0293
NGK 2 OZA448E44
Blue Print  
Cambiare VE381012
Fuel Parts (Uk) LB1031
Intermotor 64021
Lucas Electrical LEB147
Beckermann 5020031
Delphi ES2002512B1
Fuel Parts (Marathon) FPLB1031
H&m Automotive  
Kerr Nelson KNL021
Lemark LLB017
Part no: PLB1031