Ignition Timing: Notes

NOTE: Ignition timing, idle speed and idle mixture are controlled by the MPI ECM. Crankshaft reference sensor, engine speed reference sensor, Hall Effect sensor and various other sensors signal MPI ECM, causing ignition at appropriate moment. See Fig 1 -Fig 4 .

Fig 1: Locating Crankshaft Reference Sender

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Fig 2: Locating Engine Speed Sensor

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Fig 3: Locating Hall Effect Sensor

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Fig 4: Controlling Ignition Timing

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