PAT Air Mass Meter: The Essential Engine Management Component

Ensuring the smooth operation of your vehicle's engine management system, the PAT Air Mass Meter is a crucial component. Positioned between the air filter and throttle body, this Mass Air Flow Sensor measures incoming air and often incorporates the Intake Air Temperature Sensor (ATS). The data collected by this sensor assists your engine's ECU in achieving the correct fuel mix, ignition timing, and sometimes even transmission shifting.

  • Functionality: The Mass Air Flow Sensor houses a small, electrically heated wire. Another sensor monitors the wire's temperature. The amount of electricity required to maintain the wire's heat (around 200 degrees Celsius) varies with the airflow volume, providing your ECU with the necessary information to accurately inject the appropriate amount of fuel.
  • Potential Issues: A faulty Mass Air Flow Sensor can lead to a range of issues including rough idle, sluggish performance, black exhaust smoke, poor fuel economy, and even a warning light on your dashboard. The primary cause is contamination of the hot wire due to dust, dirt, or oil build-up, which hinders accurate airflow readings. While newer sensors are designed to mitigate this issue, they are not infallible. Oily aftermarket air filters are a common source of contamination.
  • Diagnosis: To identify any issues, compare the sensor's signal with the specifications for your vehicle using the appropriate scan tool or oscilloscope. Warning codes on your dashboard can also indicate a problem (codes starting with P0068, P0100, P0101, P0102, P0103, P0104). Basic issues such as intake leaks or faulty wiring can also affect the Mass Air Flow Sensor.
  • PAT Emission Solution: PAT Emission offers over 340 high-quality Air Flow Meters and sensors, suitable for a wide range of vehicles across Australia and New Zealand. Choosing PAT means choosing parts that are built to your car manufacturer's standards, ensuring the perfect fit and function.

* For correct fitment, ensure the vehicle is listed in the compatibility list and read any notes associated with the product. If there are no vehicle details listed, please send a message.

12 Months
SKU AFM-137
Model # AFM-137
Barcode # 9341554001411
Brand PAT
Assembled Length 0.010m
Assembled Height 0.010m
Warranty 12 Months
Contains Liquid No

PAT

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.

Select your vehicle using the Part Finder to check fitment for your specific vehicle.
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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.

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