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 wastegate or variable geometry turbocharger (VGT) actuator. A faulty sensor, wiring issues, or a malfunctioning actuator can cause this code, leading to improper boost control and reduced engine performance.
1. Most Common Causes
- Faulty turbocharger boost control position sensor
- Damaged or corroded wiring/connectors to the sensor
- Malfunctioning wastegate or VGT actuator
- Carbon buildup on the actuator or sensor
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or acceleration
- Poor fuel economy
- Turbocharger not boosting properly
3. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for additional codes.
Step 2: Visually inspect the sensor and wiring for damage, corrosion, or loose connections.
Step 3: Test the sensor's voltage and resistance with a multimeter and compare to manufacturer specs.
Step 4: Check the wastegate or VGT actuator for proper operation and carbon buildup.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as reduced boost can cause poor performance and potential engine damage. Limp mode may activate.
How much does it cost to fix?▼
Diagnosis typically costs $50-$150. Sensor replacement ranges from $100-$300, while actuator replacement can be $200-$500.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.