Engine-CodesAcura – P1243 Acura

P1243 Acura Code - Throttle Position Insufficient

Quick Answer

When an Acura vehicle triggers the diagnostic trouble code (DTC) P1243, it indicates that there is an issue with the throttle position sensor (TPS) or the throttle position system in the vehicle. Common causes include Faulty throttle position sensor, Wiring or connector issues in the throttle position sensor circuit, Carbon buildup on the throttle body. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1243 Acura indicates Throttle Position Insufficient.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the throttle position sensor circuit, Carbon buildup on the throttle body.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P1243 Acura Description

When an Acura vehicle triggers the diagnostic trouble code (DTC) P1243, it indicates that there is an issue with the throttle position sensor (TPS) or the throttle position system in the vehicle. The throttle position sensor is a crucial component that monitors the position of the throttle valve, which controls the amount of air entering the engine. The TPS sends this information to the engine control module (ECM) to adjust the fuel injection and ignition timing for optimal engine performance.

OBDII Code P1243 Acura - Throttle Position Insufficient
P1243 Acura Code - Throttle Position Insufficient

Common Causes of P1243 Acura

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the throttle position sensor circuit
  3. Carbon buildup on the throttle body
  4. Vacuum leaks in the intake system
  5. ECM software or hardware malfunction

Symptoms of P1243 Acura

  1. Erratic idle speed
  2. Lack of responsiveness when pressing the accelerator pedal
  3. Engine stalling or hesitation during acceleration
  4. Poor fuel efficiency
  5. Check Engine Light illuminated on the dashboard

How to Fix P1243 Acura

  1. Diagnose the issue by using a scan tool to retrieve the specific trouble code and perform a thorough inspection of the throttle position sensor and related components.
  2. Test the throttle position sensor using a multimeter to check for proper voltage output and resistance values.
  3. Clean the throttle body to remove any carbon buildup that may be affecting the sensor's readings.
  4. Inspect and repair any damaged wiring or connectors in the TPS circuit.
  5. If necessary, replace the throttle position sensor with a new OEM or high-quality aftermarket component.

Cost to Fix P1243 Acura

The typical repair costs for addressing a throttle position sensor issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for a throttle position sensor replacement can range from $50 to $200, while the labor cost can be between $100 and $200. Overall, the total repair cost for resolving a P1243 code related to throttle position insufficiency can range from $150 to $400, excluding any additional diagnostic fees. It's advisable to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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