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 DESCRIPTIONSIGNITION TIMING CONTROL
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Ignition Timing Control
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Ignition Timing Control
DESCRIPTION
On the basis of the engine speed and load signals, the Digital Motor Electronic (DME) control unit determines the ignition angle (ignition timing) which is output via the ignition output stage. This function also takes into consideration other input signals such as the engine temperature, intake air temperature, throttle position and signals from the Auxilary Throttle Valve Control (ADS ll), Automatic Stability Control (ASC), Engine Drag Torque control (MSR) and from the Electronic Transmission Control (EGS).
On the basis of the engine speed and load signals, the Digital Motor Electronic (DME) control unit determines the ignition angle (ignition timing) which is output via the ignition output stage. This function also takes into consideration other input signals such as the engine temperature, intake air temperature, throttle position and signals from the Auxilary Throttle Valve Control (ADS ll), Automatic Stability Control (ASC), Engine Drag Torque control (MSR) and from the Electronic Transmission Control (EGS).
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.