What does code P1154 mean on Audi vehicles?
A malfunction has been detected in the intake manifold changeover system.
OBD-II Code Audi
P1154 — Audi — Intake Manifold Switch Over Malfunction
A malfunction has been detected in the intake manifold changeover system.
Common symptoms
- Loss of power at certain RPM ranges.
Possible causes
- Faulty actuator or insufficient vacuum.
Initial recommendation
Check actuator and vacuum lines.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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