The Powertrain Control Module (PCM) detects faults and generates codes accordingly. One such code is P0013, which typically indicates an issue with the solenoids. This article outlines the signs and root causes of P0013 and how to fix it.
Table of Contents
What Is P0013 Code?
The P0013 code is a diagnostic trouble code that indicates an issue with the solenoid valve that regulates oil flow to the exhaust actuator in a VVT (Variable Valve Timing) engine.
The main purpose of VVT technology is to improve engine performance and fuel efficiency.
This technology works by using electronic circuits to control the timing of the engine’s intake and exhaust valves.
The camshaft position sensor provides the necessary information to the actuators that control the opening and closing of the valves.
When everything is working correctly, this results in improved fuel efficiency compared to a conventional camshaft.
If any of the engine sensors, such as the MAP sensor, IAT sensor, or oil control sensor, are not working properly or if the PCM (Powertrain Control Module) detects an incorrect reading from the camshaft position sensor, the check engine light may turn on or the P0010 or P0013 code may be displayed.
A fault in the solenoid that controls the flow of oil to the exhaust actuator is usually the cause of the P0013 code. This will affect the engine’s performance and fuel efficiency and should be addressed as soon as possible.
Causes
1. Clogged or Dirty Oil Control Valves:
This can cause the valve to not function properly, leading to incorrect oil flow and pressure to the engine components, resulting in the P0013 code.
2. Poor Electrical Connectivity of Actuator Solenoid:
If the actuator solenoid is not getting enough power or the connections are corroded, this can result in improper valve operation and trigger the P0013 code.
3. Low or Dirty Engine Oil:
Engine oil that is too low or dirty can cause insufficient lubrication of engine components and result in incorrect valve operation, leading to the P0013 code.
4. Low Oil Pressure:
If the oil pressure is too low, this can affect the operation of the oil control valve and trigger the P0013 code.
5. Faulty Actuator Solenoid:
If the actuator solenoid itself is damaged or malfunctioning, it can cause incorrect valve operation and trigger the P0013 code.
6. Shortened or Open Actuator Solenoid:
This can cause the solenoid to not receive the proper amount of electrical power, resulting in incorrect valve operation and the P0013 code.
7. Faulty Powertrain Control Module (PCM):
If the PCM is damaged or not functioning properly, it can result in incorrect valve operation and trigger the P0013 code.
8. Worn Timing Components:
If the timing components, such as the timing chain or belt, are worn, this can affect the operation of the oil control valve and result in the P0013 code.
Symptoms
Blinking check engine light: A blinking check engine light is an indicator that there is a malfunction in the engine management system. It could indicate a variety of issues, including a problem with the camshaft position actuator or sensor.
Rattling noise from the engine: A rattling noise from the engine can be caused by a number of issues, including loose or damaged parts, worn or damaged bearings, or a problem with the timing chain or belt.
Trouble starting and missing in cold weather: Cold weather can cause engine components to become stiff or brittle, making it difficult for the engine to start. Missing or misfiring during cold weather can also be caused by a problem with the camshaft position actuator or sensor.
The smell of gas when starting in cold weather: If you smell gas when starting the engine in cold weather, it could indicate a problem with the fuel system, such as a leaky fuel injector or carburetor.
Engine running rough: An engine that is running rough may hesitate, stall, or vibrate. This can be caused by a number of issues, including a problem with the camshaft position actuator or sensor, a misfire, or a vacuum leak.
Poor mileage: Poor fuel economy can be caused by a number of issues, including a problem with the camshaft position actuator or sensor, a misfire, or an issue with the fuel system.
How To Fix It?
The P0013 error code usually indicates an issue with the camshaft position actuator circuit. It could also be caused by a malfunctioning variable valve timing system.
To fix P0013 error code, it is important to follow a systematic approach, starting with the simplest and most common causes.
- Replace the Engine Oil Filters: Dirty or clogged engine oil filters can reduce oil flow and cause the engine to run poorly. Replacing the oil filter can help improve performance and prevent damage to other engine components.
- Check the Coolant Level: A low coolant level can cause the engine to overheat, leading to damage to the variable valve timing system. Make sure the coolant is at the correct level and add more if needed.
- Change the Engine Oil: Dirty or contaminated engine oil can clog the variable valve timing system, causing it to fail. Changing the oil can help keep the system clean and running smoothly.
- Electrical Fault Troubleshooting: The P0013 error code can be caused by a variety of electrical issues, such as a failed camshaft position sensor, a damaged wiring harness, or a problem with the control module. Troubleshoot electrical issues by checking for loose or corroded connections, inspecting the wiring harness, and testing the sensor.
- Inspect and Replace Worn Timing Components: Worn timing components, such as the camshaft chain, tensioner, or sprockets, can cause the camshaft position sensor to fail. Inspect these components and replace them if needed.
- Check Engine Oil Level: The engine oil level should be checked regularly to ensure it is at the correct level. A low oil level can cause the engine to run poorly and damage the variable valve timing system.
- Replace the Crankshaft and Camshaft Position Sensors: The camshaft and crankshaft position sensors provide critical information to the vehicle’s computer about the position of the engine’s moving parts. Replacing these sensors can help correct the P0013 error code.
- Clear the Error Code: After completing the repairs, clear the error code from the vehicle’s computer using an OBD-II scanner.
- Test Drive the Vehicle: Take the vehicle for a test drive to ensure the P0013 error code has been resolved and that the engine is running smoothly.
If the P0013 error code continues to reappear after completing these steps, further diagnostic testing may be necessary, such as a compression test or a cylinder balance test.
It is always recommended to seek professional repair assistance if you are unsure how to proceed.