Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer thinks the part that helps control the turbo isn't working right because it can't learn its position correctly.
The wastegate is a component that helps control the boost pressure from the turbocharger. The position sensor monitors its position, and if it goes beyond the expected range, the code is triggered.
The P2B93 code indicates that the wastegate position sensor 'A' has detected a position that is outside of its learned limits. This could be due to a malfunctioning sensor, a problem with the wastegate actuator, or an issue with the turbocharger control system.
• Check Engine Light is on
• Reduced engine performance
• Poor acceleration
• Unusual engine noises
• Faulty wastegate position sensor
• Malfunctioning wastegate actuator
• Wiring issues or poor connections
• Faulty turbocharger control module
Wastegate: A valve that controls the flow of exhaust gases to the turbocharger.
Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.
• Use an OBD-II scanner to confirm the code.
• Inspect the wastegate position sensor and its wiring for damage.
• Test the wastegate actuator for proper operation.
• Check the turbocharger control module for faults.
• Replace the wastegate position sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the wastegate actuator if it is malfunctioning.
• Reprogram or replace the turbocharger control module if needed.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $800
Moderate
• Ford F-150
• Chevrolet Silverado
• BMW 3 Series
• Regular maintenance of the turbocharger system
• Ensure proper electrical connections
• Use quality fuel to prevent deposits
Sensor Issue
• Have the vehicle inspected by a professional if you notice performance issues.
• Do not ignore the Check Engine Light.
Check with the manufacturer for specific warranty coverage on turbocharger components.
This code has been reported in vehicles with turbocharged engines, particularly those with high mileage or poor maintenance history.
Moderate – It may not cause immediate damage but can lead to reduced performance and efficiency.
Driving with this issue may not be safe as it can affect engine performance and efficiency.
• Engine at operating temperature
• Vehicle in a safe area for testing
The wastegate position sensor is typically located near the turbocharger on the engine.
Q: Can I drive with a P2B93 code?
A: It's not recommended as it can affect engine performance and efficiency.
Q: How is the wastegate position sensor tested?
A: A multimeter can be used to check the sensor's resistance and signal output.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.