P012C Urgente
Turbocharger/Supercharger Inlet Pressure Sensor A Circuit Low
No conducir — requiere atención inmediata
Descripción
This code means the turbocharger/supercharger inlet pressure sensor is reporting a pressure reading that is too low. This could indicate a problem with the sensor itself or a lack of boost pressure from the turbo/supercharger.
Causas comunes
- Faulty turbocharger/supercharger inlet pressure sensor
- Vacuum leak in the intake system
- Problem with the turbocharger or supercharger (e.g., wastegate stuck open)
- Clogged air filter or intake duct
- Wiring issue to the sensor
- Faulty Engine Control Module (ECM)
Síntomas
- Significant loss of engine power
- Check Engine Light is on
- Poor acceleration
- Engine may run lean
Pasos de reparación
- 1 Inspect the air filter and intake duct for clogs or blockages, and replace the air filter if dirty or restricted.
- 2 Check all intake system hoses and connections for vacuum leaks, cracks, or loose clamps, and repair as needed.
- 3 Inspect the wiring harness and electrical connector at the turbocharger/supercharger inlet pressure sensor for damage, corrosion, or loose pins, and repair any issues found.
- 4 Test the turbocharger/supercharger inlet pressure sensor signal and ground circuits with a multimeter to verify proper voltage readings per manufacturer specifications.
- 5 Replace the turbocharger/supercharger inlet pressure sensor if readings are out of range or the sensor fails testing.
- 6 Inspect the turbocharger or supercharger for mechanical issues, including a stuck-open wastegate, worn bearings, or damaged compressor wheel, and repair or replace as needed.
- 7 Have the Engine Control Module (ECM) tested and reprogrammed or replaced if all other components test normal and the code persists.
Diagnóstico y costo
Avanzado
$75 – $1200 USD Estimado en taller independiente (EE.UU.)