P0102
Mass Air Flow (MAF) Circuit Low Input
2004-2007 Buick Rainier 4.2L I6
Moderate SeverityPowertrainGeneric (SAE)
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
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- 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 2004-2007 Buick Rainier?
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 Buick Rainier?
Common symptoms of P0102 include: Check Engine Light, Loss of power, Rich fuel condition, Black smoke.
What causes P0102 on a 2004-2007 Buick Rainier?
Common causes of P0102 include: Faulty MAF sensor, Short in signal wire, Disconnected sensor, Contaminated sensor element.