Engine-CodesAcura – P2552 Acura

P2552 Acura Code - Throttle/Fuel Inhibit Circuit

Quick Answer

The P2552 diagnostic trouble code for Acura vehicles relates to the throttle/fuel inhibit circuit. Common causes include Faulty throttle position sensor, Wiring issues or a short circuit in the throttle/fuel inhibit circuit, Malfunctioning fuel injector. 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
P2552 Acura indicates Throttle/Fuel Inhibit Circuit.
Common causes
Common causes include Faulty throttle position sensor, Wiring issues or a short circuit in the throttle/fuel inhibit circuit, Malfunctioning fuel injector.
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 09, 2024
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Code P2552 Acura Description

The P2552 diagnostic trouble code for Acura vehicles relates to the throttle/fuel inhibit circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the throttle and fuel delivery system. The throttle/fuel inhibit circuit plays a crucial role in regulating the amount of fuel that is injected into the engine and controlling the throttle position based on driver input.

OBDII Code P2552 Acura - Throttle/Fuel Inhibit Circuit
P2552 Acura Code - Throttle/Fuel Inhibit Circuit

Common Causes of P2552 Acura

  1. Faulty throttle position sensor
  2. Wiring issues or a short circuit in the throttle/fuel inhibit circuit
  3. Malfunctioning fuel injector
  4. Issues with the engine control module (ECM)
  5. Dirty or clogged fuel filter

Symptoms of P2552 Acura

  1. Lack of power during acceleration
  2. Rough idling or stalling
  3. Poor fuel efficiency
  4. Difficulty starting the engine

How to Fix P2552 Acura

  1. Diagnose the root cause of the issue by using a scan tool to read the code and check the throttle position sensor's readings.
  2. Inspect the wiring in the throttle/fuel inhibit circuit for any damage or corrosion. Repair or replace any damaged wires.
  3. Test the fuel injector to ensure it is functioning correctly. Replace it if necessary.
  4. Reset the engine control module (ECM) to clear the trouble code and see if the issue persists.
  5. Perform a thorough inspection of the fuel system, including the fuel filter, fuel pump, and fuel lines, to ensure they are all in good working condition.

Cost to Fix P2552 Acura

The typical repair costs for addressing a P2552 code in an Acura vehicle can range from $200 to $500, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.

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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.

Frequently Asked Questions about P2552 Acura Code

1. What does the OBDII code P2552 mean for an Acura?

P2552 indicates an issue with the Throttle/Fuel Inhibit Circuit, which affects the communication between the throttle system and fuel delivery system.

2. What are the common symptoms of P2552 on an Acura?

Symptoms may include poor engine performance, reduced throttle response, engine stalling, or the check engine light illuminating.

3. What causes the P2552 code to trigger in an Acura?

Causes can include a faulty throttle position sensor (TPS), damaged wiring or connectors, a malfunctioning fuel control module, or issues with the engine control module (ECM).

4. Can I drive my Acura with the P2552 code?

Driving with P2552 is not recommended, as it can lead to poor performance and safety risks due to potential loss of throttle control or engine stalling.

5. How do I diagnose the P2552 code on my Acura?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting the throttle/fuel inhibit circuit wiring and connectors, and testing the TPS and ECM for faults.

6. What are potential fixes for the P2552 code?

Repairs may include replacing the throttle position sensor, repairing damaged wiring, replacing the fuel control module, or reprogramming/repairing the ECM.

7. How much does it cost to fix the P2552 code on an Acura?

Costs vary depending on the issue, but TPS replacement can range from $150 to $300, while ECM repairs or replacements may cost $500 or more.

8. Can a dirty throttle body cause the P2552 code on an Acura?

While not a direct cause, a dirty throttle body can impact throttle operation and potentially contribute to issues leading to the P2552 code.

9. Will clearing the P2552 code with an OBDII scanner fix the problem?

Clearing the code may turn off the check engine light temporarily, but it won't resolve the underlying issue causing the P2552 code.

10. How can I prevent the P2552 code from recurring on my Acura?

Regular maintenance, such as inspecting and cleaning the throttle body, checking wiring connections, and addressing component wear promptly, can help prevent the code from recurring.

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