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 SYSTEMSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSWITH - BMW DIAGNOSTIC SYSTEMCOMPONENT QUICK TESTSINTAKE AIR TEMPERATURE SENSOR
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Intake Air Temperature Sensor
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Intake Air Temperature Sensor
TEST PROCEDURE
Status Monitoring
With the engine at operating temperature, the intake air temperature should be between 122° and 158°F (50° to 70°C); ambient air temperature 73°F ± 9° (23 +/- 5 C).
A display below -40°F (-40°C) indicates a break in the temperature sensor or in the supply wire to the Digital Motor Electronic (DME) control unit.
Status Monitoring
With the engine at operating temperature, the intake air temperature should be between 122° and 158°F (50° to 70°C); ambient air temperature 73°F ± 9° (23 +/- 5 C).
A display below -40°F (-40°C) indicates a break in the temperature sensor or in the supply wire to the Digital Motor Electronic (DME) control unit.
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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.