Turbocharger Boost Control 'B' Position Sensor Circuit
The P2064 code means the vehicle's onboard diagnostic system has detected: Turbocharger Boost Control 'B' Position Sensor Circuit. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $150 - $600 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Reduced turbo boost
- Engine power limited
- Acceleration feels sluggish
- Turbo may surge or flutter
Probable Causes (Ranked by Likelihood)
- Failed turbocharger boost control B position sensor Very High
- Wiring damage to the B sensor circuit High
- Corroded sensor connector Moderate
- ECM boost control B circuit fault Low
Step-by-Step Diagnostic Procedure
-
Read boost control B sensor data on scan tool
-
Inspect wiring to the B position sensor
-
Measure sensor reference voltage and signal
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Compare B sensor reading to A sensor for consistency
Frequently Asked Questions
What does P2064 mean?
P2064 indicates: Turbocharger Boost Control 'B' Position Sensor Circuit. The ECM has detected a problem with the turbocharger boost control system.
Can a dirty turbo cause this code?
Yes, carbon and soot buildup on the VGT (Variable Geometry Turbo) vanes is a common cause of boost control codes, especially on diesel engines. Cleaning the turbo vanes can sometimes resolve the issue.
How much does a turbo repair cost?
Sensor and actuator repairs typically cost $150 to $600. If the turbocharger itself needs replacement, costs can reach $1500 to $3000 including labor.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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