AutoCodes – Mercury – P1517 Mercury

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

Quick Answer

The Intake Manifold Runner Control (IMRC) is an electrically actuated system consisting of a motorized actuator with an attaching linkage for each housing on each bank. Common causes include Faulty Intake Manifold Runner Control (IMRC) actuator, Intake Manifold Runner Control actuator harness is open or shorted, Intake Manifold Runner Control actuator circuit poor electrical connection. 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 Mercury indicates Intake Manifold Runner Control Input Error Bank 2.
Common causes: Common causes include Faulty Intake Manifold Runner Control (IMRC) actuator, Intake Manifold Runner Control actuator harness is open or shorted, Intake Manifold Runner Control actuator circuit poor electrical connection.
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.

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Code Popularity 2,065

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1517 Mercury Description

The Intake Manifold Runner Control (IMRC) is an electrically actuated system consisting of a motorized actuator with an attaching linkage for each housing on each bank. The linkage attaches to the housing butterfly plate levers. Each IMRC housing is an aluminum casting with two intake air passages for each cylinder. One passage is always open, and the other is opened and closed with a butterfly valve plate. The housing uses a return spring to hold the plates closed. The motorized actuator houses internal switches to provide feedback to the Powertrain Control Module (PCM), indicating linkage and plate position. Under about 3000 rpm, the vacuum solenoid will be energized. This will allow the manifold vacuum to be applied and the butterfly valve plates to stay closed. Above approximately 3000 rpm, the vacuum solenoid will be de-energized. This will allow a vacuum to vent from the actuator and the butterfly valve plates to open. The Diagnostic Trouble Code (DTC) sets when the signal is outside an expected calibrated range.

OBDII Code P1517 Mercury - Intake Manifold Runner Control Input Error Bank 2 - AutoCodes.com — P1517 Mercury Code - Intake Manifold Runner Control Input Error Bank 2

What does this mean?

What are the Possible Causes of the DTC P1517 Mercury?

Faulty Intake Manifold Runner Control (IMRC) actuator
Intake Manifold Runner Control actuator harness is open or shorted
Intake Manifold Runner Control actuator circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1517 Mercury?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1517 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 P1517 Mercury Code

What does the OBDII code P1517 mean for a Mercury vehicle?

Code P1517 indicates an Intake Manifold Runner Control (IMRC) Input Error on Bank 2. This means the IMRC system is not functioning properly or is reporting incorrect data for one side of the engine.

What are the common symptoms of code P1517 in a Mercury vehicle?

Symptoms may include reduced engine performance, poor fuel efficiency, hesitation during acceleration, and the check engine light being illuminated.

What causes the P1517 code to appear on a Mercury vehicle?

Common causes include a faulty IMRC actuator, damaged IMRC wiring or connectors, vacuum leaks, or issues with the intake manifold runner flaps.

Can a dirty intake manifold cause code P1517 on a Mercury?

Yes, carbon buildup in the intake manifold can restrict the movement of the runner flaps, leading to the IMRC system error associated with code P1517.

How is the P1517 code diagnosed in a Mercury vehicle?

A mechanic will use a scan tool to confirm the code, visually inspect the IMRC system, check for vacuum leaks, test the actuator, and monitor IMRC sensor readings for abnormalities.

Can I drive my Mercury with code P1517 present?

While driving with the P1517 code is possible, it is not recommended as it can lead to reduced performance, poor fuel economy, and potential damage to the engine over time.

How can code P1517 be fixed on a Mercury vehicle?

Repairs may involve replacing the IMRC actuator, cleaning the intake manifold, repairing damaged wiring or connectors, or resolving vacuum leaks.

Does clearing the P1517 code fix the problem permanently?

No, clearing the code will temporarily remove the check engine light, but the underlying issue must be addressed to prevent the code from returning.

What tools are needed to repair the P1517 code on a Mercury?

Tools may include a scan tool, multimeter for electrical testing, vacuum gauge, and basic hand tools for disassembly and inspection of the intake system.

How much does it cost to repair code P1517 on a Mercury vehicle?

Repair costs can vary widely depending on the cause, ranging from $100 for minor fixes like cleaning the intake manifold to $500 or more for replacing the IMRC actuator or related parts.