DTC 16554

SAE VAG Description
P0170 16554 Fuel Trim Bank 1

Fuel injectors
- Fuel injectors, checking. Fuel Injectors, Checking

Fuel pressure regulator and residual pressure
- Fuel pressure regulator and residual pressure, checking. Fuel Pressure Regulator and Residual Pressure, Checking

Fuel Pump (FP)
- Fuel pump, checking. Fuel Pump Checking

Intake system
- Intake system for leaks (unmetered air), checking. Intake Air System, Checking For Leaks (False/Unmetered Air)

Note: Check vacuum lines for leaks.