AutoCodes – Generic – P2018

P2018 Code - Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1

Quick Answer

The Intake Manifold Runner Valve (IMRV) system is mounted on the intake manifold and consists of the intake manifold runner valve (IMRV), the IMRV motor and the IMRV position sensor. Common causes include Intake Manifold Runner Valve Binding Or Sticking, Intake Manifold Runner Valve, Vacuum Line Cracked or Broken (Vacuum Leak). 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: P2018 indicates Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1.
Common causes: Common causes include Intake Manifold Runner Valve Binding Or Sticking, Intake Manifold Runner Valve, Vacuum Line Cracked or Broken (Vacuum Leak).
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 14,473

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2018 Description

The Intake Manifold Runner Valve (IMRV) system is mounted on the intake manifold and consists of the intake manifold runner valve (IMRV), the IMRV motor and the IMRV position sensor. The IMRV motor opens and closes the IMRV using multiple gears. The valve position sensor detects the opening angle of the IMRV. The IMRV has a groove on its upper portion. When the IMRV is closed, air flows through a groove into the cylinder from the intake manifold, so that a dynamic air flow or ”tumble” air flow is generated in the cylinder. The tumble air flow drastically reduces fuel deposits inside the intake air port and the combustion wall surface inside the cylinder. This improves the combustion efficiency by boosting the air−fuel mixture and air flow turbulence.

OBDII Code P2018 - Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1 - AutoCodes.com — P2018 Code - Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1

What does this mean?

What are the Possible Causes of the DTC P2018?

Intake Manifold Runner Valve Binding Or Sticking
Intake Manifold Runner Valve
Vacuum Line Cracked or Broken (Vacuum Leak)
Intake Manifold Runner Position Sensor 1 or Wiring
Faulty Engine Control Module (ECM)

How to Fix the DTC P2018?

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 P2018 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.

Need more information about the P2018 code?

Need more information on how to fix the P2018 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2018 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2018 Chrysler — Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1
P2018 Dodge — Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1
P2018 Jeep — Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1

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 P2018 Code

1. What are the common symptoms of OBDII code P2018?

The common symptoms of OBDII code P2018 include rough idling, engine misfires, decreased fuel efficiency, and a noticeable decrease in engine performance.

2. What can cause the Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1 code P2018?

The P2018 code can be caused by a faulty intake manifold runner position sensor/switch, damaged wiring or connectors related to the sensor, or a problem with the intake manifold itself.

3. How can I diagnose the cause of OBDII code P2018?

To diagnose the cause of the P2018 code, you can start by visually inspecting the intake manifold runner position sensor and its wiring for any visible damage. Using a multimeter, you can test the sensor's resistance and voltage to determine if it is functioning properly.

4. Can I drive my vehicle with OBDII code P2018?

It is not recommended to drive your vehicle with the P2018 code present, as it can lead to further damage to the engine and decrease fuel efficiency. It is best to address the issue promptly to prevent any potential complications.

5. How can I repair OBDII code P2018?

Repairing the P2018 code may involve replacing the intake manifold runner position sensor/switch, repairing any damaged wiring or connectors, or cleaning the intake manifold. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

6. Are there any DIY tips for fixing OBDII code P2018?

If you are familiar with automotive repairs, you can attempt to inspect and clean the intake manifold runner position sensor/switch and its connectors to see if that resolves the issue. However, if the problem persists, it is best to seek professional help.

7. Can a dirty intake manifold cause OBDII code P2018?

Yes, a dirty or clogged intake manifold can restrict airflow and cause issues with the intake manifold runner position sensor/switch, leading to the P2018 trouble code. Regular maintenance, such as cleaning the intake manifold, can help prevent this issue.

8. How urgent is it to address OBDII code P2018?

While your vehicle may still be operable with the P2018 code, it is important to address the issue promptly to prevent potential engine damage and ensure optimal performance. Ignoring the code can lead to more severe problems down the line.

9. Can a loose or disconnected vacuum hose cause OBDII code P2018?

Yes, a loose or disconnected vacuum hose can disrupt the intake manifold runner system's operation, triggering the P2018 trouble code. Checking for any loose or disconnected hoses and reattaching them securely may help resolve the issue.

10. Is OBDII code P2018 a common problem in specific vehicle makes and models?

OBDII code P2018 related to the intake manifold runner position sensor/switch circuit intermittent Bank 1 can be a common issue in vehicles with variable intake manifolds, especially in certain models from manufacturers like Volkswagen, Audi, and Ford.