Pulse Generator - Engine Speed/Position
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Pulse Generator - Engine Speed/Position:
The DME does not output an ignition and injection signal if the engine speed signal is not applied.
Check function:
•D• 2 - The engine speed signal can be monitored at starting speed or when the engine is running.
Further test options are possible with the oscilloscope. •M• 23/24. Disconnect terminals at the component connector and start engine. An alternating voltage characteristic curve with positive and negative half wave should appear on the display screen.
Possible cause:
If wire, plug connection and resistance are OK~: Check distance of pulse generator to the increment wheel on the vibration damper.
Nominal value: 0.15 to 1.5 mm.