Denso DMA-0112 MAF SensorDenso DMA-0112 MAF Sensor is a high-quality air flow sensor that ensures optimal engine performance. Its advanced technology detects and measures the amount of air entering the engine, providing accurate readings for precise fuel injection control
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The Denso DMA‑0112 is a high‑performance Mass Air Flow (MAF) sensor engineered for modern internal combustion engines. It measures the exact amount of air entering the intake manifold, enabling the engine control unit (ECU) to deliver the optimal fuel mixture and ignition timing. This precision translates into smoother acceleration, better fuel economy, and reduced emissions.
The DMA‑0112 operates on a hot wire principle. A fine tungsten filament is heated to a constant temperature by an integrated heater. As air flows over the filament, it cools the element; the sensor’s electronics detect this cooling effect and convert it into an electrical signal proportional to the mass of incoming air.
Key advantages:
| Parameter | Value |
|---|---|
| Model Number | DENSO DMA‑0112 |
| Sensor Type | Hot Wire MAF |
| Signal Output | 0–5 V DC (analog) |
| Operating Temperature | -40 °C to +125 °C |
| Ambient Humidity | ≤ 95% RH |
| Mounting Orientation | Horizontal or Vertical (depending on vehicle) |
| Connector Type | Standard 3‑pin MAF connector |
| Dimensions | Approx. 70 mm × 30 mm × 20 mm |
| Weight | ≈ 50 g |
The DMA‑0112 is an OEM replacement for a broad range of Toyota, Lexus, and Hyundai models. Common applications include:
Because the sensor is a direct OEM part, it matches the exact electrical characteristics required by each vehicle’s ECU, ensuring seamless integration without additional tuning.
| Error Code | Possible Cause | Recommended Action |
|---|---|---|
| P0101 – Mass Air Flow Circuit Low Input | Loose connection or damaged wiring. | Inspect and secure the connector; replace damaged cable. |
| P0102 – Mass Air Flow Circuit High Input | Contaminated sensor surface. | Clean the sensor with a non‑abrasive cleaner. |
| P0103 – Mass Air Flow Circuit Intermittent | Faulty sensor or intermittent wiring. | Replace the DMA‑0112 if cleaning does not resolve the issue. |
The Denso DMA‑0112 Mass Air Flow Sensor exemplifies engineering excellence in engine management. Its robust design, precise measurement capability, and broad vehicle compatibility make it the preferred choice for technicians and owners seeking optimal performance and reliability. By accurately feeding real‑time airflow data to the ECU, the DMA‑0112 ensures that every combustion cycle is executed with maximum efficiency, delivering a smoother driving experience and better fuel economy.
Denso is a Japanese automotive parts manufacturer. It is the world's largest supplier of automotive ignition systems, and also produces a wide range of other automotive components.
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