AutoCodes – Subaru – P0018 Subaru

P0018 Subaru Code - Crankshaft Position - Camshaft Position Correlation Bank 2

Quick Answer

The Camshaft Position Sensor is a hall effect type sensor. Common causes include Dirty Oil, Faulty Oil Flow Control Solenoid, Faulty Camshaft Position Sensors. 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: P0018 Subaru indicates Crankshaft Position - Camshaft Position Correlation Bank 2.
Common causes: Common causes include Dirty Oil, Faulty Oil Flow Control Solenoid, Faulty Camshaft Position Sensors.
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 23,236

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 Jul 08, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0018 Subaru Description

The Camshaft Position Sensor is a hall effect type sensor. It is used to detect rotational speed and position of the camshaft by interpreting reluctor slots machined onto the camshafts. It produces a digital voltage signal pattern based on the reluctor wheel; this can be observed at the sensor. The engine control unit uses this information for fuel injection timing and cylinder identification. The Diagnostic Trouble Code (DTC) sets when the Engine Control Module (ECM) detects the correlation value between the crankshaft position sensor and camshaft position sensors is out of range.

OBDII Code P0018 Subaru - Crankshaft Position - Camshaft Position Correlation Bank 2 - AutoCodes.com — P0018 Subaru Code - Crankshaft Position - Camshaft Position Correlation Bank 2

What does this mean?

What are the Possible Causes of the DTC P0018 Subaru?

Dirty Oil
Faulty Oil Flow Control Solenoid
Faulty Camshaft Position Sensors
Faulty Crankshaft Position Sensor
Harness is open or shorted
Circuit poor electrical connection
Engine Timing

How to Fix the DTC P0018 Subaru?

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 P0018 Subaru 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 P0018 Subaru Code

1. What does OBDII code P0018 in a Subaru indicate?

- OBDII code P0018 in a Subaru indicates a problem with the Crankshaft Position - Camshaft Position Correlation on Bank 2.

2. What are common symptoms of OBDII code P0018 in a Subaru?

- Common symptoms of P0018 in a Subaru may include engine misfires, rough idling, poor acceleration, and illuminated Check Engine Light.

3. What are possible causes of OBDII code P0018 in a Subaru?

- Possible causes of P0018 in a Subaru include a faulty camshaft or crankshaft position sensor, timing chain or belt issues, engine mechanical problems, or a malfunctioning Variable Valve Timing (VVT) system.

4. How can I diagnose the cause of OBDII code P0018 in my Subaru?

- Diagnosing P0018 in a Subaru typically involves checking the camshaft and crankshaft sensors, inspecting the timing components, and performing a thorough examination of the VVT system.

5. Can driving with OBDII code P0018 in a Subaru cause further damage?

- Continuing to drive with P0018 in a Subaru can potentially cause damage to the engine, leading to more serious issues over time. It is recommended to address the problem promptly.

6. Is it safe to clear the OBDII code P0018 in a Subaru without fixing the underlying issue?

- Clearing the P0018 code without resolving the underlying problem in a Subaru is not recommended, as the issue will likely return, and any potential damage to the engine may not be addressed.

7. How is OBDII code P0018 in a Subaru typically repaired?

- Repairing P0018 in a Subaru often involves replacing faulty sensors, addressing timing chain or belt issues, fixing engine mechanical problems, or repairing the VVT system as needed.

8. Can a DIY enthusiast fix OBDII code P0018 in a Subaru?

- Depending on the specific cause, some DIY enthusiasts may be able to address P0018 in a Subaru by replacing sensors or performing basic inspections. However, more complex issues may require professional assistance.

9. How much does it cost to repair OBDII code P0018 in a Subaru?

- The cost to repair P0018 in a Subaru can vary widely depending on the cause of the issue, parts needed, labor costs, and whether the repair is done at a dealership or an independent mechanic. It is advisable to obtain quotes from multiple sources.

10. How can I prevent OBDII code P0018 from occurring in my Subaru?

- To prevent P0018 in a Subaru, it is essential to follow the manufacturer's recommended maintenance schedule, including regular oil changes and inspections of the timing components and VVT system.