Engine Error
P0240
Turbocharger/Supercharger Boost Sensor B Circuit Range/Performance
Severity
Medium
Symptoms
Poor acceleration, check engine light, failure to build boost
Common Causes
- Defective Boost Sensor B
- Vacuum line leak to the sensor
- Corroded electrical connection
- Internal turbocharger failure
How to Fix
- 1 Replace Boost Sensor B
- 2 Replace degraded vacuum lines
- 3 Clean and grease sensor connector
- 4 Inspect turbocharger fins and bearings
Estimated Repair Cost
USD
$50
–
$1500
Sensor: $100 - $200; Turbocharger replacement: $1,000 - $1,500+