Engine-CodesMercury – P1516 Mercury

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

Quick Answer

The P1516 code for Mercury vehicles indicates an Intake Manifold Runner Control (IMRC) input error on Bank 1. Common causes include Faulty IMRC actuator or solenoid, Wiring or electrical issues in the IMRC system, Vacuum leaks in the intake manifold. 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 Mercury indicates Intake Manifold Runner Control Input Error Bank 1.
Common causes
Common causes include Faulty IMRC actuator or solenoid, Wiring or electrical issues in the IMRC system, Vacuum leaks in the intake manifold.
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 Aug 25, 2024
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Code P1516 Mercury Description

The P1516 code for Mercury vehicles indicates an Intake Manifold Runner Control (IMRC) input error on Bank 1. The IMRC system is responsible for adjusting the length of the intake runners to optimize airflow into the engine, improving performance and efficiency. When this code is triggered, it means that there is a problem with the input signal to the IMRC system on Bank 1, which can lead to issues with engine performance, fuel economy, and emissions.

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

Common Causes of P1516 Mercury

  1. Faulty IMRC actuator or solenoid
  2. Wiring or electrical issues in the IMRC system
  3. Vacuum leaks in the intake manifold
  4. Carbon buildup in the intake manifold runners
  5. PCM (Powertrain Control Module) failure

Symptoms of P1516 Mercury

  1. Reduced engine power
  2. Rough idling or stalling
  3. Poor acceleration
  4. Check Engine Light illuminated
  5. Decreased fuel efficiency

How to Fix P1516 Mercury

  1. Diagnose the root cause of the issue using a scan tool to pinpoint the specific problem within the IMRC system.
  2. Inspect the IMRC actuator and solenoid for proper operation and replace if necessary.
  3. Check and repair any damaged wiring or electrical connections in the IMRC system.
  4. Clean out any carbon buildup in the intake manifold runners.
  5. Reset the PCM and clear the diagnostic trouble codes to see if the issue is resolved.

Cost to Fix P1516 Mercury

The typical repair costs for addressing a P1516 code on a Mercury vehicle can range from $200 to $500, including parts and labor. However, the actual cost can vary depending on the specific cause of the issue, the model and year of the vehicle, and the labor rates charged by the auto repair shop. It's recommended to get a detailed quote from a trusted mechanic or dealership to determine the exact cost for your particular situation.

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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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