Learn how to test a Mass Air Flow (MAF) sensor without a scan tool. Discover crucial tips on checking the power and ground circuits, identifying voltage fluctuations, and understanding the sensor’s circuits. Use a digital multimeter for precise readings. Safely conduct on-car tests to avoid damaging the sensor. Confirm MAF sensor health by monitoring voltage signals at various RPMs. Visit our site for a full list of MAF sensor tests. Maximize engine performance by maintaining a clean and…