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

Quick Answer

The P1516 code for Ford vehicles indicates an issue with the Intake Manifold Runner Control (IMRC) system, specifically an input error on Bank 1. Common causes include Faulty IMRC actuator, Wiring or connector issues, Vacuum leaks in the IMRC system. 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 Ford indicates Intake Manifold Runner Control Input Error Bank 1.
Common causes
Common causes include Faulty IMRC actuator, Wiring or connector issues, Vacuum leaks in the IMRC system.
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 Aug 30, 2024
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Code P1516 Ford Description

The P1516 code for Ford vehicles indicates an issue with the Intake Manifold Runner Control (IMRC) system, specifically an input error on Bank 1. The IMRC system is responsible for adjusting the length of the intake runners to optimize airflow into the engine. This error can lead to incorrect air-fuel mixture ratios, affecting the engine's performance, fuel efficiency, and emissions.

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

Common Causes of P1516 Ford

  1. Faulty IMRC actuator
  2. Wiring or connector issues
  3. Vacuum leaks in the IMRC system
  4. Carbon buildup in the intake manifold
  5. ECM (Engine Control Module) failure

Symptoms of P1516 Ford

  1. Rough idle
  2. Reduced engine power
  3. Decreased fuel economy
  4. Check Engine Light illuminated
  5. Reduced throttle response

How to Fix P1516 Ford

  1. Diagnose the specific cause of the code by performing a thorough inspection of the IMRC system, including the actuator, wiring, and vacuum lines.
  2. Test the IMRC actuator to ensure it is functioning properly or replace it if necessary.
  3. Check for and repair any wiring or connector issues related to the IMRC system.
  4. Clean the intake manifold of any carbon buildup that may be obstructing the movement of the intake runners.
  5. Clear the error code and reset the ECM to see if the issue has been resolved.

Cost to Fix P1516 Ford

The cost of repairing a P1516 code on a Ford vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's a good idea to get quotes from multiple auto repair shops to ensure you're getting a fair price.

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Information for Specific Ford Models

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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