Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW1993740IL (E32/2) V8-3982CC 4.0L DOHC (M60)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSENGINE-SPEED/POSITION PULSE GENERATOR
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Engine-Speed/Position Pulse Generator
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Engine-Speed/Position Pulse Generator
Check function:
[D] 200 - The engine speed signals can be monitored at starting speed or when the engine is running.
Further tests are possible with the oscilloscope [M] 23/24. Connect terminals at the component connector and crank engine. An AC voltage characteristic curve with positive and negative half waves should appear on the display screen.
Resistance test:
The resistance can be measured directly at the component connector (at the connector strip for injector valves). Refer to schematic for wiring diagram.
Possible cause:
If wire, plug connection or resistance are OK:
Check distance of the pulse generator to the incremental wheel on the vibration damper - 0.15...1.5 mm.
Adjustment at holder -1.0 ± 0.3 mm.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.