P25F4

Turbocharger/Supercharger Boost Sensor C Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Reduced engine power
Deterioration in acceleration dynamics
Check Engine Light Illuminates
Unstable idling
Increased fuel consumption

Causes

Boost pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring Harness Problems
Engine control unit malfunction

How to Fix

Check the continuity of the boost pressure sensor circuit
Inspect the connectors and contacts of the sensor
Check the performance of the boost pressure sensor
Replace sensor if necessary
Check and update the ECU firmware if updates are available

Related codes

P25F3 P25F5 P2563