Quote:
Step 5 : Hook top (com) terminal to wire to maf, hook middle (NC) terminal to diode, hook bottom (NO) terminal to other end of diode which also has the wire to the computer hooked to it. Just make sure the diode flow is going from NC terminal to NO terminal.
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I'm confused - I would think that normally open (NO) terminal would be connected to the diode anode and the NC terminal is connected to the cathode and the computer. This way when the sensor switches, the current flows out the NO terminal through the diode thus producing the voltage drop.