Keep the ECU reading accurate exhaust data with the Walker Products Oxygen Sensor 250-23002. This 3-wire, narrow-band, heated sensor is a direct-fit replacement for a broad list of 1986–1995 Ford, Lincoln, Mercury and Mazda applications — including the Ford Aerostar, Mustang [V8-5.0L], Taurus [V6-3.0L] and Ranger [L4-2.3L], the Lincoln Town Car and Mark VII [V8-5.0L], and the Mercury Grand Marquis [V8-5.0L]. It measures combustion efficiency based on the amount of oxygen in the exhaust gas.
- Monitors air-fuel ratio: determines the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency.
- Platinum electrodes: electrodes made of a gas-permeable platinum layer.
- Protective coating: a coating helps prevent contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
- Serviceable design: threaded mounting sized for a 22 mm wrench.
As a narrow-band sensor it feeds the ECU the signal it needs to fine-tune the air-fuel mixture, which supports normal fuel economy and helps reduce exhaust pollutants. A failing oxygen sensor may cause the engine to run poorly, increase fuel consumption or emissions, or illuminate the malfunction indicator light (MIL); the sensor, wiring harness and connector should also be checked for physical damage. If a failed sensor is the cause, this replaces it. Country of origin: Japan.
Manufacturer part number 250-23002. This sensor fits 65 applications — see the Buyer's Guide tab for the full list.
