OBD-II Generic Error Code P2163: Throttle Position Sensor A High Stop Performance Fix

Medium 30 minutes to 1 hour Medium Severity Verified July 2026
Error Code
P2163
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30 minutes to 1 hour
Error code P2163 indicates that the Engine Control Module (ECM) has detected the Throttle Position Sensor (TPS) A signal voltage is too high compared to the expected stop position. This usually means the sensor is reading a wide-open throttle when it should be at idle, or there's a wiring fault. Prompt diagnosis prevents drivability issues like hard starting, poor idle, or reduced power.
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Tools You'll Need

How to Fix Error Code P2163

  1. Check for Additional Codes and Freeze Frame Data

    Ensure the ignition is off before connecting the scanner. Follow scanner instructions.
  2. Inspect Throttle Body and TPS Wiring

    Disconnect the battery before inspecting electrical connections to prevent short circuits.
  3. Test Throttle Position Sensor Output Voltage

    Do not short the probe to adjacent pins. Set multimeter to DC volts.
  4. Check Reference Voltage and Ground

  5. Replace Throttle Position Sensor

    After replacement, some vehicles require a throttle position relearn procedure. Consult vehicle service manual.

Parts You May Need

Throttle Position Sensor (TPS)
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Throttle body gasket
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Throttle Position Sensor (TPS)
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Throttle body gasket
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Throttle Position Sensor (TPS)
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Throttle body gasket
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Throttle Position Sensor (TPS)
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Throttle body gasket
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When to Call a Professional

If you've replaced the TPS and the code returns, or if you're uncomfortable testing electrical circuits, consult a professional mechanic. The problem could be a faulty ECM, damaged wiring harness, or internal engine issue.

Frequently Asked Questions

Can I drive with error code P2163?
It is not recommended. The vehicle may experience reduced power, poor idle, or stalling. Continued driving could damage the catalytic converter or other components.
Is P2163 serious?
Yes, it is moderately serious. It affects throttle control and can lead to unsafe driving conditions. Address it promptly.
What causes P2163?
Common causes include a faulty throttle position sensor, damaged wiring or connector, carbon buildup on the throttle body, or a problem with the engine control module.
How much does it cost to fix P2163?
If you DIY, a TPS sensor costs $20-$100. Professional repair may run $150-$400 including diagnostic fees.
Do I need to reprogram the ECM after replacing the TPS?
Some vehicles require a throttle relearn procedure. Check your service manual. Often, disconnecting the battery for 15 minutes resets the ECM.