Walker Products Oxygen Sensor P/N:250-241273
Walker Products 250-23033 oxygen sensor for the 1992-1994 Volvo 960 6-cylinder 2.9L and other vehicles measures the oxygen content of the exhaust gas. This Walker Products oxygen sensor is a 3-wire, narrow-band, direct-fit unit for the upstream position.
Rough running, higher fuel consumption or a lit malfunction indicator light can mean the sensor is worn, though a damaged wiring harness or connector can also be at fault, so inspect both for physical damage first.
This oxygen sensor for the 1992-1994 Volvo 960 6-cylinder 2.9L also fits the 1990-1993 Volvo 240 4-cylinder 2.3L, which takes one sensor, and the 1989-1992 Volvo 740 4-cylinder 2.3L, among other vehicles. This listing is a single sensor.
Fit and size
Build and materials
Is this the right oxygen sensor for a 1990-1993 Volvo 240 4-cylinder 2.3L?
Yes. Walker Products 250-23033 is listed for the 1990-1993 Volvo 240 4-cylinder 2.3L. For any other car, look up its year and engine in the "Vehicles it fits" section.
Is the Walker Products 250-23033 a narrow-band or a wideband sensor?
It is a narrow-band sensor with three wires, made for the upstream position. Walker Products 250-23033 is a direct-fit unit.
What protects the electrodes on this oxygen sensor?
A coating on the electrode surfaces guards against contamination and erosion from combustion residue and particulates in the exhaust gas. The electrodes are made of a gas-permeable platinum layer.
What can a failing upstream oxygen sensor look like?
Poor engine running, higher fuel consumption or a lit malfunction indicator light can be signs of a failing sensor. Newer vehicles may also store a fault code that a shop can read.
Does this oxygen sensor affect fuel economy and emissions?
Yes, it is meant to help. It measures oxygen levels in the exhaust so the air-fuel mixture can be fine-tuned for fuel economy, and it monitors exhaust gases to help reduce pollutants.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.