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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBMW1993740IL (E32/2) V8-3982CC 4.0L DOHC (M60)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSDESCRIPTION AND OPERATIONDIGITAL MOTOR ELECTRONIC (DME)FUNCTIONAL DESCRIPTIONSTHROTTLE POTENTIOMETER
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Throttle Potentiometer
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Throttle Potentiometer
OPERATION
A throttle potentiometer is installed instead of a throttle switch with idle and full load contact. This potentiometer requires no further adjustment since the Digital Motor Electronic (DME) control unit itself learns the idle angle (idle switching point). The DME adds a fixed value to the learned idle value. The full load value is derived from the sum of these two values. The potentiometer must transfer this value to the DME in order to be processed by the DME as a full load signal.
If the throttle potentiometer is changed, the DME must be disconnected from the voltage supply for at least 1 minute. The DME then begins to learn the idle angle (voltage value) once again.
A throttle potentiometer is installed instead of a throttle switch with idle and full load contact. This potentiometer requires no further adjustment since the Digital Motor Electronic (DME) control unit itself learns the idle angle (idle switching point). The DME adds a fixed value to the learned idle value. The full load value is derived from the sum of these two values. The potentiometer must transfer this value to the DME in order to be processed by the DME as a full load signal.
If the throttle potentiometer is changed, the DME must be disconnected from the voltage supply for at least 1 minute. The DME then begins to learn the idle angle (voltage value) once again.
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.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.