What does code P1354 mean?

Q: What does code P1354 mean?

Modulation Piston Displacement Sensor Circuit Malfunction. P1354 on Volkswagen vehicles indicates that the engine control module (ECM) has detected an electrical fault in the circuit of the modulation piston displacement sensor, which is used on certain direct-injection engines to monitor the fuel pump's modulation piston position. The ECM compares the sensor signal against expected values and sets this code when the signal is out of range, intermittent, or missing entirely.

DTC codes / Volkswagen codes / P1354

P1354 · VolkswagenModulation Piston Displacement Sensor Circuit Malfunction

P1354 on Volkswagen vehicles indicates that the engine control module (ECM) has detected an electrical fault in the circuit of the modulation piston displacement sensor, which is used on certain direct-injection engines to monitor the fuel pump's modulation piston position. The ECM compares the sensor signal against expected values and sets this code when the signal is out of range, intermittent, or missing entirely.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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