Walker Products Mass Air Flow Sensor P/N:245-1231
Walker Products 245-1223 mass air flow sensor for the 2001-2004 Volvo S40 4-cylinder 1.9L and other vehicles measures the air entering the engine and reports it to the ECU. The sensor assembly includes its housing.
A failing mass air flow sensor can show up as hesitation, a rough idle or a check engine light, though those signs can have other sources. Before replacing it, look over the intake duct and the sensor connector with the engine off for cracks, loose fittings or an oily film.
Among mass air flow sensors for the 2001-2004 Volvo S40 4-cylinder 1.9L, this one is a direct-fit replacement, and it also fits the 2001-2004 Volvo V40 4-cylinder 1.9L. This listing is one sensor, and the 1.9L engine in either car takes a single one.
Fit and size
Build and materials
One mass air flow sensor assembly with its housing. Mounting hardware is not included, so plan on new mounting hardware, since the old pieces may not be reusable.
Interchange: 213-4200 · 74-10105 · 64-1769 · 917-894
5S2918 · MF21152 · MF21152N · AF10196 · MA250 · 30611532 · 306115320 · SU5867
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This part cross-references / interchanges with the following part numbers:
Is this a maf sensor for the 2001-2004 Volvo S40 4-cylinder 1.9L?
Yes. Walker Products 245-1223 fits the 2001-2004 Volvo S40 4-cylinder 1.9L, and that engine takes one sensor.
Will this work as a mass air flow sensor for the 2001-2004 Volvo V40 4-cylinder 1.9L?
Yes. Walker Products 245-1223 is a direct-fit replacement for the 2001-2004 Volvo V40 4-cylinder 1.9L.
Does the Walker Products mass air flow sensor come with its housing?
Yes. This is a complete sensor and housing assembly. Mounting hardware is not included.
Does this mass air flow sensor have a male or female connector?
The connector is female and has 3 terminals.
How should I handle a new mass air flow sensor during installation?
Handle it carefully, because oil from your hands or air pollution can damage the sensor. The design is meant for straightforward installation.
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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.