AutoCodes – Lincoln – P1512 Lincoln

P1512 Lincoln Code - Intake Manifold Runner Control Stuck Closed Bank 1

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: P1512 Lincoln indicates Intake Manifold Runner Control Stuck Closed Bank 1.
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 1,651

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 P1512 Lincoln 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 IMRC is commanded open, but the IMRC monitor indicates close.

OBDII Code P1512 Lincoln - Intake Manifold Runner Control Stuck Closed Bank 1 - AutoCodes.com — P1512 Lincoln Code - Intake Manifold Runner Control Stuck Closed Bank 1

What does this mean?

What are the Possible Causes of the DTC P1512 Lincoln?

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 P1512 Lincoln?

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 P1512 Lincoln 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 P1512 Lincoln Code

1. What are the common symptoms of OBDII code P1512 in a Lincoln related to the Intake Manifold Runner Control Stuck Closed Bank 1?

- Common symptoms include rough idling, decreased engine performance, reduced fuel efficiency, and potential stalling.

2. What can cause the Intake Manifold Runner Control to become stuck closed in a Lincoln triggering code P1512?

- The common causes of this issue can be a faulty intake manifold runner control valve, carbon buildup in the intake manifold, or issues with the control solenoid.

3. How can I diagnose the Intake Manifold Runner Control issue triggering OBDII code P1512 in my Lincoln?

- Diagnosis typically involves checking for vacuum leaks, inspecting the intake manifold runner control system components, and using a scan tool to monitor data related to the system.

4. Can I drive my Lincoln with the Intake Manifold Runner Control stuck closed and code P1512 present?

- It is not recommended to drive the vehicle extensively with this issue, as it can lead to further damage and decreased performance. It's best to address the problem promptly.

5. What are some repair tips for resolving OBDII code P1512 related to the Intake Manifold Runner Control in a Lincoln?

- Repair tips may include cleaning the intake manifold, replacing the intake manifold runner control valve, checking and repairing vacuum lines, and ensuring proper operation of the control solenoid.

6. Is it safe to continue driving my Lincoln if I reset the check engine light associated with code P1512 without fixing the underlying issue?

- While resetting the check engine light may temporarily turn off the warning, it is not a permanent solution. Ignoring the underlying problem can lead to further issues and potential damage to the vehicle.

7. How does the Intake Manifold Runner Control system impact the performance of a Lincoln engine?

- The Intake Manifold Runner Control system helps optimize airflow to the engine, enhancing performance and fuel efficiency. When stuck closed, it can disrupt this airflow, leading to performance issues.

8. Can a DIY enthusiast fix the Intake Manifold Runner Control Stuck Closed Bank 1 issue causing OBDII code P1512 in a Lincoln?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to address the issue by following repair guides and using proper diagnostic equipment.

9. How much does it typically cost to repair the Intake Manifold Runner Control issue associated with OBDII code P1512 in a Lincoln?

- Repair costs can vary depending on the specific cause of the problem, but they may range from a few hundred to over a thousand dollars, including parts and labor.

10. Are there any preventative maintenance steps I can take to avoid encountering the Intake Manifold Runner Control Stuck Closed issue and code P1512 in my Lincoln?

- Regularly cleaning the intake system, using high-quality fuel, and following the manufacturer's recommended maintenance schedule can help prevent issues with the Intake Manifold Runner Control system.