P0102
Mass Air Flow (MAF) Circuit Low Input
1997-2000 BMW 528i E39 2.8L I6 🇬🇧
Moderate SeverityPowertrain
Description
The MAF sensor signal voltage is lower than the minimum expected value.
Symptoms
- Check Engine Light
- Loss of power
- Rich fuel condition
- Black smoke
Common Causes
- Faulty MAF sensor
- Short in signal wire
- Disconnected sensor
- Contaminated sensor element
Diagnostic Steps
- Check MAF sensor connector
- Test signal voltage
- Inspect wiring for shorts to ground
- Test sensor output
Repair Notes
Replace MAF sensor or repair wiring.
Related Codes
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- P0003Fuel Volume Regulator Control Circuit Low
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- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0102 on Other Vehicles
Common Questions
What does code P0102 mean on a 1997-2000 BMW 528i E39?
P0102 stands for "Mass Air Flow (MAF) Circuit Low Input". The MAF sensor signal voltage is lower than the minimum expected value.
What are the symptoms of P0102 on a BMW 528i E39?
Common symptoms of P0102 include: Check Engine Light, Loss of power, Rich fuel condition, Black smoke.
What causes P0102 on a 1997-2000 BMW 528i E39?
Common causes of P0102 include: Faulty MAF sensor, Short in signal wire, Disconnected sensor, Contaminated sensor element.