P0011 code — how to fix error fast | REREV (2024)

The “check engine” light in a car can be associated with a bunch of diagnostic codes, and one of the most common codes is the P0011. If you are wondering about the P0011 code meaning, in short, it indicates a problem with the camshaft position sensor. Still, that’s just an understatement and scratching the surface.

So, our team decided to give you a more detailed explanation in this guide. We’ll break down the issue by giving you an overview of the overall meaning, and how to diagnose and repair the issue and prevent it from ever happening again.

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What does code P0011 mean?

To give you a bit more perspective on the issue, the P0011 code means there’s an over-advanced condition of your engine’s camshaft rotation. An over-advanced camshaft timing occurs when the camshaft in an engine is rotating more quickly than it should. In other words, the camshaft is out of sync with the rest of the engine’s components, which can lead to a variety of problems.

The camshaft is responsible for opening and closing the engine’s valves at the right time, allowing air and fuel to enter and exhaust gases to exit the combustion chamber. If the rotation is out of sync, the valves may not open or close at the specified time, and that leads to less power, misfires, and even severe damage to the engine’s pistons and valves.

What causes the P0011 code?

The P0011 code can be caused by various issues related to the camshaft position sensor. To help you narrow it down, we’ll give you an overview of the few most common culprits:

The camshaft position sensor is failing

These days the engine’s combustion is completely electronically operated since the engine control unit (ECU) uses a set of parameters provided by different sensors. One such sensor is the camshaft position sensor and if it fails, it will provide false data to the ECU, forcing it to change and adapt the combustion cycle metrics.

So, if the sensor fails, you may still be able to save the engine by replacing it, and it’s not even difficult to do it yourself.

Bad timing chain or belt

This one is among the most serious reasons behind the P0011 code and it’s the improper rotation of the timing chain or belt. Depending on the model, your car’s engine uses a belt or a chain to ensure proper crankshaft and camshaft rotation and eventually proper combustion timing.

So, if the belt or a chain has slipped a bit, it could lead to the camshaft rotating out of sync with the crankshaft. In this case, you’ll need an experienced mechanic to look into it since it directly affects your engine.

Clogged oil passage

Clogged oil passage is another one of the main reasons behind this issue and it may lead to the code P0011 showing up. The camshaft is lubricated by oil that flows through small passages in the engine block and cylinder head. If these passages become clogged or blocked, it can affect the camshaft’s ability to rotate properly.

What car models does the P0011 code affect the most?

The P0011 code can affect various car models, but it is most commonly seen in vehicles with V6 or V8 engines. Some of the car models that are known to have issues with the P0011 code include the following:

• Nissan Maxima
• Infiniti G35
• Chevy Malibu
• Buick LaCrosse

However, it’s also important to note that this issue appears more often in cars with variable valve timing. You’ve surely heard of Toyota and Honda VVT-i engines, so it’s something to keep in mind and pay attention to. If you own a Honda Accord, Civic, or Toyota Avalon, chances are you’ll experience this issue more often.

How to diagnose the P0011 code?

To diagnose the P0011 code, a mechanic will need to use specialized diagnostic tools, such as an OBD-II scanner, to read the code and determine the root cause of the issue. Additional tests may need to be performed to determine the exact cause of the malfunction, such as the following ones:

Visual engine inspection

The first step in diagnosing any automotive issue is to perform a visual inspection of the engine and its components. This can help identify any obvious signs of damage or wear, such as worn belts, damaged wiring, or loose connections.

Check the engine oil level

Low oil pressure or poor-quality oil can cause issues with the camshaft position sensor, so it’s important to check the oil level and quality as part of the diagnostic process.

Test the camshaft position sensor

You can also use a multimeter or other testing equipment to check the voltage and resistance of the camshaft position sensor. If it is not within manufacturer specifications, it may need to be replaced.

Check the timing belt/chain

A stretched or worn timing chain or belt can cause issues with camshaft timing and trigger the P0011 code. Inspect these components for wear and replace them if necessary.

While you can use the OBD2 scanner to look for error codes yourself, it’s best to leave this one to a mechanic due to the nature of the issue.

You don’t want to tamper with the camshaft and engine timing yourself, so a mechanic will test the operation of the camshaft position sensor and check the timing belt or chain to set up a diagnosis.

How to fix the P0011 code?

The methods used to fix the P0011 code will depend on the root cause of the issue. Here’s a list of the most common fixes depending on the reason that triggered the code:

Replace the camshaft position sensor

If the problem is a faulty camshaft position sensor, it will need to be replaced. You can use a multimeter to check the sensor and if it turns out to be out of sync, replacing it should restore the original set of data sent to the ECU to control the combustion.

Clear the oil passages within the engine

If the problem is a clogged oil passage, the mechanic will need to clean or replace the affected part. Once the oil pressure is restored, it may presumably remove the code, assuming it’s been triggered by this cause.

Adjust or replace the timing chain or belt

Finally, if the engine’s timing belt or chain is out of sync or stretched, it can affect the engine’s timing cycle, and that only leads to further internal damage to your engine. To cope with this issue, it’s best to immediately replace the belt, while cars with a timing chain may require less frequent changes.

The cost of fixing the code will vary depending on the root cause of the issue and the specific car model. Replacing a faulty camshaft position sensor can cost between $100 and $250 while replacing a timing chain or belt can cost anywhere from $500 to $2,000. Cleaning or replacing an oil passage can cost between $150 and $300.

It is essential to seek professional help to fix the P0011 code, as attempting to fix it on your own can lead to further damage or even cause serious injury.

How to prevent the P0011 code?

To prevent the P0011 code from occurring, it is essential to perform routine maintenance on the affected system. Here are some of the main tips to utilize when trying to avoid and prevent the code P0011 from happening in your car:

• Enforce regular oil changes
• Check the timing belt or chain for damage
• Test the camshaft position sensor during every car servicing

It is also essential to have any issues with the vehicle diagnosed and fixed promptly to prevent them from becoming more serious problems. By staying on top of routine maintenance and addressing any issues as soon as they arise, car owners can prevent the P0011 code and keep their vehicles running smoothly.

Our take

In the end, it all comes down to proper maintenance when trying to prevent engine-related issues caused by poor camshaft rotation. If the camshaft gets out of sync, it could lead to a pretty serious problem. So, the best thing you can do is have an experienced mechanic look into it and replace the faulty sensor if it’s the cause of the issue.