What does code P1227 mean?

Q: What does code P1227 mean?

Wastegate Failed Closed Over Pressure. P1227 on Ford vehicles means the powertrain control module (PCM) commanded the turbocharger wastegate to open and relieve boost, but the engine still produced more manifold pressure than the calibrated limit for that operating point. The PCM compares desired boost against actual boost from the manifold absolute pressure (MAP) sensor and flags this code when the wastegate appears stuck closed and overboost occurs.

DTC codes / Ford codes / P1227

P1227 · FordWastegate Failed Closed Over Pressure

P1227 on Ford vehicles means the powertrain control module (PCM) commanded the turbocharger wastegate to open and relieve boost, but the engine still produced more manifold pressure than the calibrated limit for that operating point. The PCM compares desired boost against actual boost from the manifold absolute pressure (MAP) sensor and flags this code when the wastegate appears stuck closed and overboost occurs.

SystemPowertrain

Code typeFord specific

SeverityHigh

Fix difficultyProfessional

AreaFuel and air metering (injector circuits)

Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.