P2018 OBD-II Trouble Code: Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P2018 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P2018 code

P2018 is a diagnostic trouble code (DTC) for "Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $79.99. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$79.99$20.00
Toyota$79.99$20.00
BMW$79.99$20.00
SCHEDULE P2018 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light logo

P2018 trouble code definition

Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1

What the P2018 code means

P2018 is an OBD-II generic code for the engine control module (ECM) detecting a an intermittent failure in the intake manifold runner position sensor/switch circuit causing the ECM to turn on the Check Engine Light and set the P2018 code.

What causes the P2018 code?

  • The engine control module (ECM) tests the intake manifold runner position on startup to test its operation and monitors the position during vehicle operation and will set a fault code P2018 if the signal return is erratic or intermittent from the sensor.

  • The signal from the intake manifold runner is erratic but still within specification when it works.

What are the symptoms of the P2018 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory as a fault.
  • The engine may have low power conditions or acceleration issues.
  • The engine miles per gallon may suffer over time.

How does a mechanic diagnose the P2018 code?

  • Scans codes and documents the code in the ECM and look at the freeze frame data for failure

  • Checks the wire connections to the sensor for loose or corroded connections

  • Performs the manufacture pinpoint test on the sensor to verify the failed sensor

Common mistakes when diagnosing the P2018 code

  • Clearing ECM memory codes before checking the freeze frame data, so the failure may be duplicated and repaired

  • Failing to clear the ECM codes after the codes are fixed

  • Replacing parts when the wiring has been rubbing through from a loose harness tie down

How serious is the P2018 code?

Code P2018 is a code for the intake manifold runner sensor not working correctly and the problem may not cause major issues with everyday driving except on acceleration.

What repairs can fix the P2018 code?

  • Replacing the intake manifold runner sensor for bank 1
  • Repairing the wiring harness or connector to sensor
  • Replacing the ECM for an internal faulty circuit

Additional comments for consideration regarding the P2018 code

Code P2018 is to alert you that bank 1 signal is erratic and may not affect the component from working except when the signal is not working. The problem may be very intermittent or may be very often depending on failure.

Need help with a P2018 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P2018
trouble codes
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P2018 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

4,255

Rating Summary
3,898
174
45
26
112
3,898
174
45
26
112
Ben

Ben

39 years of experience
1020 reviews
Ben
39 years of experience
Lexus LS430 - Check Engine Light is on - Houston, Texas
I was very pleased with the courtesy and work of Mr. Smith. He was exceptional in explaining and correcting the problem and thereby gained my trustI . I request he be my mechanic in all future service requests. I had a great experience working with Mr. Ben Smith.
Richard

Richard

19 years of experience
203 reviews
Richard
19 years of experience
Ram ProMaster 1500 - Check Engine Light is on - Bonita Springs, Florida
Prompt, polite and personal. Took the time to explain the process and his recommendations. 2 thumbs up
Michael

Michael

23 years of experience
37 reviews
Michael
23 years of experience
Ford F-150 - Check Engine Light is on - Federal Way, Washington
Very helpful and explained everything and what needs to be addressed. I feel informed and confident in Mike’s assessment and look forward to him performing services on my vehicle.
Rigoberto

Rigoberto

9 years of experience
650 reviews
Rigoberto
9 years of experience
Honda Civic - Check Engine Light is on - Chicago, Illinois
Rigoberto came on time & quickly diagnosed the problem- rats chewed thru wiring near the battery. He wasn’t able to fix it himself bc of parts, but gave me recommendations on where to go & how to not have the dealership sell me services that are not needed.

More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...

Related questions

Q: Check engine sign on

Most Check Engine Lights are illuminated when an error code is triggered and stored in the ECM. Even if you've repaired what was broken or damaged, you still need to clear those codes in order for the light to go...

Q: When driving the car it feels like it's gone into a higher gear.

Hello, thanks for writing in. Is your Check Engine Light illuminated? Your description sounds like your transmission may be in "limp mode" which is usually 2nd gear in many transmissions. It is also possible that the sensation you are getting...

Q: What would cause brand new O2 sensors to give codes 172, 173, 176, and 177, rich and lean conditions, both sides at the same time?

When it comes to across-the-board codes being set such as this, it is usually a result of something "upstream" creating the condition to set all these codes. For instance, it is rare for both O2 sensors to fail at exactly...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com