Turbocharger Boost Control Position Sensor Circuit Range/Performance
The P2587 code indicates that the Engine Control Module (ECM) has detected a signal from the turbocharger boost control position sensor that is outside the expected range or performance parameters. This sensor monitors the position of the turbocharger wastegate or variable geometry turbo (VGT) actuator. The ECM uses this input to regulate boost pressure. A fault can cause incorrect boost control, leading to reduced engine power, poor fuel economy, and potential turbocharger damage.
01. Most Common Causes
- Faulty turbocharger boost control position sensor
- Wiring or connector issues (open, short, corrosion)
- Carbon buildup on the sensor or actuator
- Failed turbocharger actuator or wastegate
- ECM software or hardware problem
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or limp mode
- Poor acceleration or sluggish performance
- Excessive black smoke from exhaust
- Abnormal turbocharger noise
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and freeze frame data
Step 2: Visually inspect the sensor, wiring, and connectors for damage or corrosion
Step 3: Test the sensor's voltage and resistance with a multimeter per manufacturer specs
Step 4: Check the actuator and wastegate for mechanical binding or carbon buildup
Step 5: Perform a boost pressure test to verify system operation
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as reduced power and improper boost can lead to turbocharger damage or unsafe driving conditions.
How much does it cost to fix?▼
Diagnosis typically costs $50-$150. Sensor replacement parts range from $30-$200, plus labor. Total repair can be $100-$400 depending on the vehicle.