What is the MAF on a 2002 Chevy Impala LS?

The 2002 Chevy Impala LS uses a Mass Air Flow (MAF) sensor, but there isn't one single MAF sensor part number for all of them. The specific part number will depend on the engine it's equipped with (a 3.4L V6 or a 3.8L V6 were common options).

To find the correct MAF sensor for *your* 2002 Chevy Impala LS, you need to:

1. Locate your engine's displacement: Check your vehicle's documentation (owner's manual, registration) or look for an engine code on the engine itself. This will tell you if it's a 3.4L or a 3.8L.

2. Use your VIN: The Vehicle Identification Number (VIN) is the most reliable way to determine the exact parts for your specific car. You can use this VIN with an online parts retailer (like AutoZone, Advance Auto Parts, etc.) to find the correct MAF sensor.

3. Check with a local parts store: Provide them with your VIN, and they can look it up in their system to find the appropriate MAF sensor.

Without knowing your specific engine size or VIN, it's impossible to give you a precise MAF sensor part number.