COMPUTERS AND INPUT SENSORS. CHAPTER 8. VOLTAGE SIGNALS. Pg 153C. ANALOG VOLTAGE SIGNALS VARIABLE VOLTAGE SIGNAL COMPUTERS INPUTS ARE USUALLY ANALOG TYPE SIGNALS EASY TO DIAGNOSE WITH DVOM DIRECT CURRENT OR ALTERNATING CURRENT. DIGITAL VOLTAGE SIGNALS. Pg 154C.
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Commonly used on foreign Cars
Test with DVOM or Lab Scope
Plate movement proportional to Air Flow
HOT WIRE TYPE or GRID TYPE
Use Frequency Test
Map Frequency should always be a straight line transition with rpm.
Tap TestMASS AIR FLOW SENSORS