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Engine-Codes – Generic – P1517

P1517 Code - Intake Manifold Runner Control Input Error Bank 2

Quick Answer

The P1517 diagnostic trouble code (DTC) indicates an intake manifold runner control input error in bank 2 of the engine. Common causes include Faulty intake manifold runner control actuator: The actuator responsible for adjusting the intake runner length may be malfunctioning, Wiring issues: Damaged or corroded wiring connections can disrupt communication between the control module and the intake manifold runner, Failed intake manifold runner control sensor: A faulty sensor can provide incorrect data to the engine control module, leading to performance issues. 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
P1517 indicates Intake Manifold Runner Control Input Error Bank 2.
Common causes
Common causes include Faulty intake manifold runner control actuator: The actuator responsible for adjusting the intake runner length may be malfunctioning, Wiring issues: Damaged or corroded wiring connections can disrupt communication between the control module and the intake manifold runner, Failed intake manifold runner control sensor: A faulty sensor can provide incorrect data to the engine control module, leading to performance issues.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1517 Description

The P1517 diagnostic trouble code (DTC) indicates an intake manifold runner control input error in bank 2 of the engine. This error typically occurs in vehicles equipped with a variable intake manifold system, which is designed to optimize airflow and improve engine performance across a range of RPMs. Bank 2 refers to the side of the engine that does not contain the number 1 cylinder.

OBDII Code P1517 - Intake Manifold Runner Control Input Error Bank 2
P1517 Code - Intake Manifold Runner Control Input Error Bank 2

Common Causes of P1517

  1. Faulty intake manifold runner control actuator: The actuator responsible for adjusting the intake runner length may be malfunctioning.
  2. Wiring issues: Damaged or corroded wiring connections can disrupt communication between the control module and the intake manifold runner.
  3. Failed intake manifold runner control sensor: A faulty sensor can provide incorrect data to the engine control module, leading to performance issues.
  4. Vacuum leaks: Leaks in the intake manifold or vacuum lines can affect the operation of the intake manifold runner control system.
  5. Carbon buildup: Accumulated carbon deposits in the intake manifold can restrict airflow and disrupt the operation of the intake manifold runner control system.

Symptoms of P1517

  1. Reduced engine power: The vehicle may experience a noticeable decrease in power output, particularly during acceleration.
  2. Rough idle: The engine may run erratically at idle, causing vibrations or shaking.
  3. Decreased fuel efficiency: The vehicle may consume more fuel than usual due to inefficient airflow.
  4. Check Engine Light: The Check Engine Light may illuminate on the dashboard to indicate a problem with the intake manifold runner control system.
  5. Engine misfires: The engine may misfire or hesitate during acceleration, leading to a rough driving experience.

How to Fix P1517

  1. Diagnose the issue: Use a diagnostic scan tool to retrieve the fault code and perform a comprehensive inspection of the intake manifold runner control system.
  2. Inspect wiring and connections: Check for damaged or corroded wiring connections and repair or replace as necessary.
  3. Test intake manifold runner control actuator and sensor: Verify the operation of the actuator and sensor to determine if they are functioning correctly.
  4. Clear fault codes: Clear the DTC and reset the engine control module to see if the issue persists after repairs.
  5. Replace faulty components: If a specific component, such as the actuator or sensor, is found to be faulty, replace it with a new part to restore proper operation of the intake manifold runner control system.

Cost to Fix P1517

The cost of repairing the intake manifold runner control input error in bank 2 can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may be higher or lower based on factors such as the vehicle's make and model, the location of the repair shop, and the extent of the repairs needed. Additionally, diagnostic time and labor rates can also impact the overall cost of the repair. It's recommended to obtain quotes from multiple auto repair shops to compare prices and ensure a competitive rate for the repair.

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Code P1517 Information for Specific Makes

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 P1517 Code

1. What are the common symptoms of OBDII code P1517 (Intake Manifold Runner Control Input Error Bank 2)?

The common symptoms include rough idling, decreased engine performance, and the illumination of the Check Engine light.

2. What are the possible causes of OBDII code P1517?

The code P1517 can be caused by issues such as a faulty intake manifold runner control (IMRC) actuator, damaged wiring or connectors, or a malfunctioning IMRC control module.

3. How can I diagnose OBDII code P1517?

Diagnosing code P1517 typically involves using an OBDII scanner to retrieve the code, inspecting the IMRC components for any visible damage, and testing the electrical connections for proper voltage and continuity.

4. Can I continue driving with OBDII code P1517?

While the vehicle may still be operable with code P1517, it is recommended to address the issue promptly to prevent further damage to the engine and ensure optimal performance.

5. How can I repair OBDII code P1517?

Repairing code P1517 may involve replacing the faulty IMRC actuator, repairing damaged wiring or connectors, or reprogramming the IMRC control module. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

6. Are there any DIY tips for resolving OBDII code P1517?

DIY tips for addressing code P1517 include checking the IMRC components for any visible damage, ensuring proper electrical connections, and clearing the code with an OBDII scanner after potential repairs.

7. Is OBDII code P1517 a serious issue?

While code P1517 may not always indicate a critical problem, it can impact engine performance and fuel efficiency. Addressing the issue in a timely manner is advisable to prevent further complications.

8. Can a dirty intake manifold cause OBDII code P1517?

A dirty intake manifold is not a direct cause of code P1517, but it can contribute to issues with the intake manifold runner control system, potentially leading to the error code.

9. Will OBDII code P1517 cause permanent damage to the engine?

If left unresolved for an extended period, OBDII code P1517 can potentially cause damage to the engine due to decreased performance and inefficient air intake. It is best to address the issue promptly.

10. How long does it typically take to repair OBDII code P1517?

The repair time for code P1517 can vary depending on the exact cause of the issue and the complexity of the repair. In general, it may take a few hours to a day for a mechanic to diagnose and resolve the problem.

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