Mass Air Flow Sensor, LH 2.2 - 240 740 760 780
Walker Products 2451098 - 142541
Product Description
Additional Keywords: MAF AIRFLOW METER AMM
Product Fitment Notes & Potential Issues
Some early LH 2.2 mass airflow sensors / air mass meters had an adjustment screw, which was intended to be set at the factory to account for small variances in the mass airflow sensor itself, as hot wire MAF technology was pretty new at the time. New manufacture MAFs are made to modern tolerances, and thus no longer have this adjustment screw; this is the current correct supersession for the MAF originally supplied with the adjustment screw, Bosch part number 0 280 212 007.
Fits cars with LH 2.2 engine management only. 1989 was a crossover year, with LH 2.2 phasing out and LH 2.4 gradually entering service; if you have a 1989 car, make sure you have LH 2.2 by checking the part numbers on your ECU or your MAF or by checking if your car has a distributor-mounted hall effect sensor.
See the attached tech tip below if you need help identifying 2.2 versus 2.4.
Technical Tips & Articles
About Walker Products
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today, Walker is one of the largest privately owned manufacturers of fuel system components and engine sensors.
Walker serves major Original Equipment Manufacturers, co-manufacturers, traditional aftermarket distributors, rebuilders, and retail customers in the automotive, Othermotive®, and heavy duty fuel sensor, engine sensor, and exhaust sensor markets worldwide.
Walker is committed to supplying products manufactured to meet or exceed OEM standards and specifications, backed by their in-house manufacturing, product management, and engineering staff to ensure precise accuracy in the production of the highest quality parts, vehicle applications, and technical support.
Walker serves both the quality aftermarket with their "350" line of standard replacement oxygen sensors made in-house, and the Original Equipment Supply (OES) market with their "250" line of sensors supplied from OEMs like Bosch and Denso: any 250-branded Walker O2 sensor features an OEM sensor element with Walker's own supplied wiring pigtail, giving you Volvo Blue Box quality at a significant discount.
Vehicle Fitment Guide
| Year | Make | Model | Trim | Chassis | Bodystyle | Engine | Fuelsys | Drive | Transmission |
|---|---|---|---|---|---|---|---|---|---|
| 1989 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1989 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M47 |
| 1989 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1989 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | M47 |
| 1988 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1988 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M47 |
| 1988 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1988 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | M47 |
| 1987 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1987 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M47 |
| 1987 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1987 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | M47 |
| 1986 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1986 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1986 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1985 | VOLVO | 240 | NON-TURBO | 200 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1985 | VOLVO | 240 | NON-TURBO | 200 | 5 DR WAGON | B230F | LH 2.2 | RWD | M46 |
| 1989 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.4 | RWD | AW71 |
| 1989 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.4 | RWD | M46 |
| 1989 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.4 | RWD | AW71 |
| 1989 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.4 | RWD | M46 |
| 1988 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1988 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M46 |
| 1988 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | ZF22 |
| 1988 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1988 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | M46 |
| 1988 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | ZF22 |
| 1988 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1988 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1988 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1988 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
| 1987 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | AW70 |
| 1987 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M46 |
| 1987 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | ZF22 |
| 1987 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | AW70 |
| 1987 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | M46 |
| 1987 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | ZF22 |
| 1987 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1987 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1987 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1987 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | ZF22 |
| 1986 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | ZF22 |
| 1986 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1986 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1986 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 740 | NON-TURBO | 700 | 4 DR SEDAN | B230F | LH 2.2 | RWD | ZF22 |
| 1985 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 740 | NON-TURBO | 700 | 5 DR WAGON | B230F | LH 2.2 | RWD | ZF22 |
| 1985 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1985 | VOLVO | 740 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1985 | VOLVO | 740 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
| 1989 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1989 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1988 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1988 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1987 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1987 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1987 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1987 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1986 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1986 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1986 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | AW71 |
| 1985 | VOLVO | 760 | TURBO | 700 | 4 DR SEDAN | B230FT | LH 2.2 | RWD | M46 |
| 1985 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | AW71 |
| 1985 | VOLVO | 760 | TURBO | 700 | 5 DR WAGON | B230FT | LH 2.2 | RWD | M46 |
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Policies, Warranty & FAQ
Product Fitment Notes & Potential Issues
Some early LH 2.2 mass airflow sensors / air mass meters had an adjustment screw, which was intended to be set at the factory to account for small variances in the mass airflow sensor itself, as hot wire MAF technology was pretty new at the time. New manufacture MAFs are made to modern tolerances, and thus no longer have this adjustment screw; this is the current correct supersession for the MAF originally supplied with the adjustment screw, Bosch part number 0 280 212 007.
Fits cars with LH 2.2 engine management only. 1989 was a crossover year, with LH 2.2 phasing out and LH 2.4 gradually entering service; if you have a 1989 car, make sure you have LH 2.2 by checking the part numbers on your ECU or your MAF or by checking if your car has a distributor-mounted hall effect sensor.
See the attached tech tip below if you need help identifying 2.2 versus 2.4.
Related Technical Articles
Available to Order means the item may not be in our warehouse but is readily available from one or more supplier warehouses. After you order it, we will get it for you ASAP.
Products from major brand names are almost always in stock in the manufacturer’s domestic warehouse. These suppliers have good fill rates, but even if they are out of stock, we may be able to source it from a variety of alternative wholesale sources.
We are at the most a week away from all these warehouses, usually much less. Does that mean we will always have your product available within that window? Honestly, we can't promise that but we’ll do everything we can to get your parts to you in a timely manner.

