P2C29

Turbocharger/Supercharger Bypass Valve B Stuck

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Reduced engine power
Unstable engine operation
Whistling or unusual noises from the turbocharger
Increased fuel consumption
Check Engine Light Illuminates

Causes

Mechanical valve jamming
Valve contamination with carbon deposits
Problems with the control solenoid valve
Open or short circuit in control circuit
Engine control unit malfunction

How to Fix

Check the mechanical condition of the bypass valve
Clean the valve from carbon and deposits
Check control solenoid valve
Check the integrity of the wiring harness and connections
Test the operation of the engine control unit

Related codes

P2C28 P2C2A P2C2B