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 SYSTEMSDESCRIPTION AND OPERATIONDIGITAL MOTOR ELECTRONIC (DME)FUNCTIONAL DESCRIPTIONSCOMPONENT SUBSTITUTE MEASURE
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Component Substitute Measure
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Component Substitute Measure
EMERGENCY OPERATION CONTROL
In the case of failure of sensors, substitute values are made available which enable continued yet restricted engine operation. Further engine operation is no longer possible if the engine speed sensor (Crankshaft Position Sensor) fails.
Component Substitute measure
Intake air temperature sensor Substitute value active
Engine temperature sensor Substitute value active
Air mass meter Substitute values are derived from the position of the throttle valve
Throttle potentiometer Substitute values for restricted engine operation
Sensor, crankshaft None, engine operation no longer possible
Hall sensor, camshaft position Parallel injection
Oxygen sensor Substitute value active, emission control not possible
In the case of failure of sensors, substitute values are made available which enable continued yet restricted engine operation. Further engine operation is no longer possible if the engine speed sensor (Crankshaft Position Sensor) fails.
Component Substitute measure
Intake air temperature sensor Substitute value active
Engine temperature sensor Substitute value active
Air mass meter Substitute values are derived from the position of the throttle valve
Throttle potentiometer Substitute values for restricted engine operation
Sensor, crankshaft None, engine operation no longer possible
Hall sensor, camshaft position Parallel injection
Oxygen sensor Substitute value active, emission control not possible
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.