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 DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULE
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Engine Control Module
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Engine Control Module
Description and Operation
Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Component Tests and General Diagnostics
- General Information
- Air Flow Meter (HLM)
- CO Potentiometer (At HLM)
- Control Unit Voltage Supply
- Defect Lamp "Check Engine" (US Only)
- Engine Temperature Sensor (Coolant)
- Engine-Speed/Position Pulse Generator
- Fuel Evaporation Valve
- Fuel Injector Valves
- Idle/Full Load Signal
- Ignition Coil
- Intake Air Temperature Sensor (In Air Flow Meter)
- Main Relay - Control (DME Relay 2)
- Oxygen Control
- Oxygen Sensor
- Pulse Generator - Cylinder Reference Point
- Sensor Heating Relay
- TR Signal /EKP Relay (Electric Fuel Pump)
- Programming and Relearning
Locations
Service and Repair
Diagrams
Technical Service Bulletins
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.