Engine-CodesLincoln – P1516 Lincoln

P1516 Lincoln Code - Intake Manifold Runner Control Input Error Bank 1

Quick Answer

The P1516 diagnostic trouble code (DTC) for Lincoln vehicles specifically refers to an Intake Manifold Runner Control (IMRC) Input Error in Bank 1. Common causes include Faulty IMRC Actuator: The actuator responsible for adjusting the intake manifold runner control may fail, causing the system to malfunction, Wiring Issues: Damaged or corroded wiring connections between the control module and the actuator can lead to communication errors and trigger the P1516 code, Defective IMRC Control Module: A malfunctioning control module that fails to interpret sensor inputs correctly can result in an intake manifold runner control input error. 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
P1516 Lincoln indicates Intake Manifold Runner Control Input Error Bank 1.
Common causes
Common causes include Faulty IMRC Actuator: The actuator responsible for adjusting the intake manifold runner control may fail, causing the system to malfunction, Wiring Issues: Damaged or corroded wiring connections between the control module and the actuator can lead to communication errors and trigger the P1516 code, Defective IMRC Control Module: A malfunctioning control module that fails to interpret sensor inputs correctly can result in an intake manifold runner control input error.
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 10, 2024
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Code P1516 Lincoln Description

The P1516 diagnostic trouble code (DTC) for Lincoln vehicles specifically refers to an Intake Manifold Runner Control (IMRC) Input Error in Bank 1. This code indicates that there is a problem with the intake manifold runner control system, which is responsible for optimizing airflow to the engine by adjusting the length of the intake runners. The intake manifold runner control system helps improve engine performance, fuel efficiency, and emissions by providing the ideal air intake conditions based on various driving conditions.

OBDII Code P1516 Lincoln - Intake Manifold Runner Control Input Error Bank 1
P1516 Lincoln Code - Intake Manifold Runner Control Input Error Bank 1

Common Causes of P1516 Lincoln

  1. Faulty IMRC Actuator: The actuator responsible for adjusting the intake manifold runner control may fail, causing the system to malfunction.
  2. Wiring Issues: Damaged or corroded wiring connections between the control module and the actuator can lead to communication errors and trigger the P1516 code.
  3. Defective IMRC Control Module: A malfunctioning control module that fails to interpret sensor inputs correctly can result in an intake manifold runner control input error.
  4. Vacuum Leaks: Any leaks in the vacuum system that controls the intake manifold runner control can disrupt the system's operation and trigger the code.
  5. Carbon Buildup: Accumulation of carbon deposits within the intake manifold or on the butterfly valves can restrict airflow and cause the intake manifold runner control system to malfunction.

Symptoms of P1516 Lincoln

  1. Check Engine Light: The most common symptom associated with the P1516 code is the illumination of the Check Engine Light on the vehicle's dashboard.
  2. Reduced Engine Performance: Drivers may experience a lack of power, hesitation, or sluggish acceleration due to the intake manifold runner control issue.
  3. Rough Idle: The engine may idle erratically or stall at idle due to incorrect airflow caused by the malfunctioning intake manifold runner control system.
  4. Decreased Fuel Efficiency: A faulty intake manifold runner control system can lead to increased fuel consumption as the engine struggles to operate efficiently.
  5. Engine Stalling: In severe cases, the engine may stall while driving, posing a safety hazard to the driver and passengers.

How to Fix P1516 Lincoln

  1. Diagnose the Issue: Begin by using a scan tool to retrieve the P1516 code and perform a thorough inspection of the intake manifold runner control system to identify the root cause of the problem.
  2. Check Wiring and Connections: Inspect the wiring harness and connections between the control module and the actuator for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components as necessary.
  3. Test the IMRC Actuator: Verify the functionality of the actuator by applying voltage and ground to the actuator to see if it responds correctly. Replace the actuator if it fails to operate properly.
  4. Clean the Intake Manifold: Remove any carbon buildup or debris from the intake manifold and butterfly valves using a specialized intake cleaner to ensure proper airflow within the system.
  5. Clear the Code: After completing the repairs, clear the P1516 code from the PCM's memory using a scan tool and perform a test drive to confirm that the issue has been resolved.

Cost to Fix P1516 Lincoln

The cost of repairing a P1516 code on a Lincoln vehicle can vary depending on the specific model, the extent of the issue, and the labor rates of the auto repair shop. In general, the typical repair costs for addressing an intake manifold runner control input error can range from $200 to $600, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary significantly, with rates typically ranging between $80 and $150 per hour. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive prices. To obtain an accurate estimate, it's recommended to consult with local auto repair shops for pricing specific to your vehicle and location.

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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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