P0174PCM software needs to be updated, Vacuum leaks (Intake Manifold Gaskets, vacuum hoses, PCV hoses, etc.), Faulty Mass Airflow (MAF) Sensor, Plugged Fuel Filter or weak Fuel Pump, Plugged or di
Similar a P0171 pero para el banco 2 del motor.
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Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Aire / Combustible · Inyección, MAF, MAP, O₂

Relacionado con la mezcla aire-combustible: sensores de flujo, presión, inyectores o bomba.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Ralentí irregular banco 2
- Pérdida de potencia
Possible Causes
The components or conditions that trigger this code
- 1Fugas de vacío banco 2
- 2Sensor MAF sucio
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Revisar fugas de vacío banco
- 2Limpiar sensor MAF.
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Sensors + injectors
* Diagnosis only: $50–$150
Quick Info
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