The circuit diagram is based around the use of the emblematic LM358 IC (IC1-A), worked here as an impact sensor with the help of a standard 27 mm piezo-ceramic element (PZ1). Advertisement Test the ...

These two wires are easily seen in a wiring diagram of the vehicle. Mike, your wire color should be dark blue and the purple. Check to see if these wires have 12 volts at the mass air flow sensor ...