P0173Fuel Trim Malfunction (Bank 2)
Same as P0172 but for bank 2.
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
- Black exhaust smoke
- Excessive consumption
- Bad smell
Possible Causes
The components or conditions that trigger this code
- 1Bank 2 injectors leaking
- 2Pressure regulator
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Check the bank 2 injectors
- 2Check the regulator
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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