P0110
Intake Air Temperature (IAT) Sensor 1 Circuit
1999-2000 BMW 528iT E39 2.8L I6 🇩🇪
Low SeverityPowertrain
Description
General malfunction in the intake air temperature sensor circuit.
Symptoms
- Check Engine Light
- Poor fuel economy
- Hard starting in cold weather
- Incorrect idle speed
Common Causes
- Faulty IAT sensor
- Wiring issue
- Corroded connector
- Sensor contaminated
Diagnostic Steps
- Test IAT sensor resistance at known temperature
- Inspect wiring and connector
- Compare IAT reading to ECT at cold start
Repair Notes
Replace IAT 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
P0110 on Other Vehicles
Common Questions
What does code P0110 mean on a 1999-2000 BMW 528iT E39?
P0110 stands for "Intake Air Temperature (IAT) Sensor 1 Circuit". General malfunction in the intake air temperature sensor circuit.
What are the symptoms of P0110 on a BMW 528iT E39?
Common symptoms of P0110 include: Check Engine Light, Poor fuel economy, Hard starting in cold weather, Incorrect idle speed.
What causes P0110 on a 1999-2000 BMW 528iT E39?
Common causes of P0110 include: Faulty IAT sensor, Wiring issue, Corroded connector, Sensor contaminated.