5-Pin MAF Hot Wire Mass Flow Diagram: 2026 Pinout Guide
A typical 5-pin hot wire mass flow diagram maps 12V power (hot wire), chassis ground wire, 5V reference voltage, MAF signal return (0–5V), and Intake Air Temperature (IAT) signal. Pin 1 provides 12V ignition power, Pin 2 is ground, Pin 3 supplies 5V ref, Pin 4 outputs MAF signal, and Pin 5 handles IAT. 📌…
