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Fuel Injection Control (-) Signal
 Courtesy of MAZDA MOTORS CORP.
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PCM terminals
- Fuel Injection No. 1: 1DO (+)-body ground (-)
- Fuel Injection No. 2: 1DW (+)-body ground (-)
- Fuel Injection No. 3: 1EA (+)-body ground (-)
- Fuel Injection No. 4: 1DS (+)-body ground (-)
Oscilloscope setting
- 20 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition