Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the gas pedal or throttle isn't stopping where it's supposed to. Imagine if your video game controller's joystick got stuck and didn't return to the center position.
The engine control module (ECM) has detected that the throttle/pedal position sensor B is not reaching its expected maximum stop position.
The P2164 code is triggered when the ECM detects that the throttle/pedal position sensor B is not reaching its maximum stop performance. This could be due to a sensor malfunction, wiring issue, or a mechanical problem with the throttle body.
• Check Engine Light is on
• Poor acceleration
• Vehicle may go into 'limp' mode
• Faulty throttle/pedal position sensor B
• Wiring issues or poor electrical connections
• Mechanical obstruction in the throttle body
Throttle Body: A component of the air intake system that controls the amount of air entering the engine.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the throttle/pedal position sensor B.
• Check for mechanical obstructions in the throttle body.
• Replace the throttle/pedal position sensor B if faulty.
• Repair or replace damaged wiring or connectors.
• Clean or repair the throttle body if there is a mechanical issue.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and clean the throttle body.
• Ensure all electrical connections are secure.
• Perform routine maintenance checks.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving aggressively if the vehicle is in limp mode.
Check with your vehicle manufacturer for warranty coverage on sensors.
This code has been associated with throttle body issues in vehicles with electronic throttle control systems.
Moderate – While the vehicle may still be drivable, performance issues can arise, and further damage could occur if not addressed.
Driving with a malfunctioning throttle sensor can lead to reduced vehicle performance and safety hazards.
• Engine at operating temperature
• Vehicle stationary with ignition on
The throttle/pedal position sensor B is typically located on the throttle body or the accelerator pedal assembly.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor vehicle performance and potential safety risks.
Q: Can I drive my car with this code?
A: While it may be possible to drive, it's not recommended due to potential performance issues and safety concerns.
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.