PAT Air Mass Meter Insert - AFM-108
Designed to be a critical component of your engine management system, the PAT Air Mass Meter Insert is positioned between your air filter and throttle body. This Mass Air Flow Sensor measures incoming air and often includes the Intake Air Temperature Sensor (ATS) as well. The data collected by this sensor assists your engine's ECU in determining the correct fuel mix, ignition timing, and sometimes even transmission shifting.
- Features a tiny, electrically heated wire inside the Mass Air Flow Sensor.
- Another sensor nearby monitors the wire's temperature.
- At idle, minimal air flows over the wire, keeping electrical needs low to maintain the wire's heat (around 200 degrees Celsius).
- When the throttle is opened, the surge of air cools the wire. To bring the temperature back up, more electricity is sent through.
- The electric current directly represents airflow volume, providing your ECU with the information it needs to precisely inject the correct amount of fuel.
A faulty Mass Air Flow Sensor can lead to a variety of issues: rough idle, sluggish performance, black exhaust smoke, poor fuel economy, and even a warning light on your dash. The most common issue is contamination of the hot wire by dust, dirt, or oil gunk, which can prevent accurate airflow readings. While newer Mass Air Flow Sensors are designed to reduce this issue, they're not infallible. Oily aftermarket air filters are a common source of contamination.
- Diagnose the problem by checking the sensor's signal with the appropriate scan tool or oscilloscope and comparing it to the specifications for your vehicle.
- Warning codes on your dash can also indicate a problem (look out for codes starting with P0068, P0100, P0101, P0102, P0103, P0104).
- Don't overlook the basics! Intake leaks or faulty wiring can also affect the Mass Air Flow Sensor.
PAT Emission offers over 340 top-quality Air Flow Meters and sensors, covering millions of vehicles across Australia and New Zealand. When you choose PAT, you receive parts built to your car manufacturer's standards for the perfect fit and function.
Warranty: 12 Months
* For correct fitment ensure the vehicle is listed in the compatibility list AND read any notes associated with the product. If there is no vehicle details listed please send us a message.
| SKU | AFM-108 |
| Model # | AFM-108 |
| Barcode # | 9341554001121 |
| Brand | PAT |
| Assembled Length | 0.010m |
| Assembled Height | 0.010m |
| Warranty | 12 Months |
| Contains Liquid | No |

Packaging note: PAT products may be supplied in PAT Premium packaging instead of the manufacturer's original box.
PAT sources EFI and engine-management parts from established OE-type manufacturers and repackages some of them in Australia. The manufacturer inside can change between batches as supply changes — for example, a part once made by Hitachi may now come from Bosch. Every unit is an OE-type part from a recognised manufacturer.
Packaging: Manufacturers periodically update their packaging and labelling. You may receive the current or a previous design — the product, formulation and part number are unchanged.
Fitment (vehicle-specific products): Vehicle fitment is based on manufacturer and supplier catalogue data and is kept as accurate as possible, but vehicle catalogues are not perfect. Some models had more than one part fitted depending on build date, engine, or component size/variant, and parts on older vehicles may have been replaced with non-original or different-style components.
Before you buy, compare the product images with the part currently fitted to your vehicle — check shape, size, connectors and mounting points. If the part on your vehicle looks different, please contact us before purchasing. It is the buyer's responsibility to confirm the part suits their vehicle before purchasing.
Not sure? Message us with your vehicle's registration number and state (preferred), or full VIN/build details, and we'll do our best to confirm fitment before you buy.
Parts returned because they do not suit the vehicle, where the listing matches the manufacturer's catalogue, are treated as a change of mind and must be unused, uninstalled and in original packaging. Nothing in this notice affects your rights under the Australian Consumer Law.