If you are having trouble starting the car, rough idling, engine stalling, and turning on the check engine light, you should check the system with the OBDII scanner. These symptoms can point to several different issues and error codes. But, if you get a P0011 code, that can result in more than just poor engine performance.
So, what problems are connected with the P0011 code, and how to fix them? The main problem is the faulty variable valve timing. The code is indicating that the engine control module (ECM) has detected that the intake camshaft in the Bank 1 is more advanced than it should be. For starters check the engine oil. Low oil levels and old and worn oil can cause it. Check the wiring and connectors. Check and replace the position sensors if needed.
In more severe cases the problem is in the oil control valve (OCV) or the Variable Valve Timing (VVT) control solenoid. These parts control the position of the crankshaft, for more information about this issue stay with us. We will cover the diagnostic, symptoms, repairs, and cost of this trouble code.
What Does P0011 OBD2 Code Really Mean?
The P0011 code means that the intake camshaft in cylinder bank 1 has moved too far.
P0011 Code Definition
The position of the camshaft is controlled by the ECM. The ECM gathers information from different sensors. With that information, it controls the position of the camshaft. Then the camshaft can open or close the engine intake valves. The combustion process will not be completed properly if the camshaft is too far.
Understanding the Camshaft Position Timing Over-Advanced Error
Engines that work on variable valve timing principle have altering time when the valve will lift. This feature helps in reducing fuel consumption, reducing emissions, and improving the overall performance of the engine. If the camshaft is not in the correct position, the combustion process is not conducted properly.
That will result in problems with stalling, rough idling, and a drop in fuel economy. Sometimes you will not be able to start the car. That problem can result in several fault codes like P0011 and P0021.
SOS Signals: Symptoms of P0011 Code
The symptoms may vary. They are usually connected to poor fuel economy, rough-running engines, and loss of engine power. They are followed by the check engine light.
Warning Signs of P0011
If you notice any of these common symptoms, be sure to check the car with the OBDII scanner:
- Problems with starting the car
- Stalling of the engine
- Rattling noise coming from the engine
- Rough engine idle
- A rise in engine emissions resulting from the failed emission standards test
- Poor acceleration
- Poor fuel economy
Its Effects on Engine Performance
The most common effect is the lack of power. When you press the acceleration pedal, you won’t feel the power you are used to. Another problem will be the rough idling, and it will sometimes cause the engine to turn off.
Sneaky Causes of P0011 Code
Besides the regular causes of the P0011 code, be aware that some less frequent problems, like the tension of the timing belt, can trigger it. Also, some components of the timing systems, like the gears or the belt, should be checked.
A stretched timing chain can also be a problem. Of course, this is applied to vehicles that have a timing chain and not a belt.
Possible Triggers of the Code
- Problems with the sensor. If the camshaft and the crankshaft sensors are not working properly they will send wrong information to the ECM. That will cause incorrect camshaft timing. This problem is followed with a P0013 code
- Stuck or broken camshaft phaser. If the phaser is stuck or broken it will be in the wrong, more advanced position than it should
- Camshaft moving forward. The camshaft is advancing when the ECM sent the signal to hold back in place
- Broken crankshaft actuator. The camshaft actuator enables the ECM to change the timing of all 4 camshafts while the engine is working. If it is not working properly, the cam timing will be off
- Problems with the electronics or the wiring. Sometimes the wires are old, and they can lose connection. That can result in problems with the sensors
- Sludgy engine oil. Old and worn engine oil will cause problems not only to the camshaft but also
- The engine oil of the wrong viscosity. In this case, the flow to and from the camshaft’s phasers is inadequate
- Clogged oil flow control valve. If there is significant dirt buildup it will cause the valve to get clogged.
Check Out the What Triggers P0011 Engine Code Error?:
Common Culprits Behind the Error
The most common problems are old, dirty engine oil, or oil of incorrect viscosity. Also, the oil control valve and the variable valve timing control solenoid are frequent problems. If the problem is advanced the engine control module could be damaged.
Diagnosing the P0011 Code Like A Pro
The first thing after you notice any of the warning signs of the P0011 code is to use the OBDII scanner. After you connect it to the car’s computer, do a scan.
Utilizing On-Board Diagnostics (OBD)
After conducting a scan, a P0011 may come up together with the P0021. The P0021 error code has the same issue with the intake camshaft advanced position. The only difference is that the other camshaft is experiencing the issue as the first one.
Other Essential Diagnostic Steps
As a first step, you can delete the error code and replace the fuel and the filter. Now check if is there a P0011 code after an oil change. If not, then you did great diagnostic work and saved a lot of money.
If not, you can do a test on a camshaft phaser. The phaser is tested at different temperatures between 250°F and 23°F. The test also goes through different solenoid settings and pressures.
Another test that could prove to be worthy is the test of the camshaft position sensor. The test is done with the multimeter. If the multimeter doesn’t show any value, then the sensor is dead and needs to be replaced. You need to check all the connectors, and the proper value is between 4.9 V and 5.1 V.
Fixing P0011 Code Like A Boss
If you have some experience with car mechanics and want to save some money, you can go through the steps. They can help you to resolve this issue. Beyond checking the oil level and the conditions of the oil, the rest of the process demands some advanced knowledge.
Besides oil, the problem can be in the camshaft variable timing solenoid and the camshaft-phasers.
Step-by-Step Repair Guide
- Use an OBDII scanner to check for any other error codes. If there are other error codes, you should address them too
- Check the level and condition of the oil. Place the car on a flat surface and pull out the dipstick. There is a minimum and a maximum recommended level of oil. Besides the level, check the condition of the oil. If it is old and worn, replace it
- Check the valve train for any sludge. You will need to remove the oil cap, and sometimes the valve cover.
- Inspect the Bank 1 intake camshaft oil control valve (OCV). You can do this by removing the oil control valve and using a pair of fused jumper wires. Place the valve on the grounded surface, like concrete. Use the jumper wires to carefully touch the valve timing control solenoid. If the valve is working, you will hear a click or the valve will move.
Check Out How to Fix P0011 Engine Code in 4 Minutes [2 DIY Methods / Only $6.95]:
Components Requiring Inspection and Replacement
You will need to check several components:
- Camshaft and crankshaft sensors and their wiring
- Bank 1 intake camshaft oil control valve
- Valve train
- Camshaft phaser
- Crankshaft actuator
- Timing belt and the rest of the timing components
- If you have it – the timing chain.
If any of these components are old, worn, or damaged, they will have to be replaced. We didn’t mention it, but the first thing you should do is check the oil. If the oil level is too low, or the oil is old, replace it together with the oil filter.
Professional Mechanic vs. DIY Fix
Choosing a method to resolve a P0011 error code depends on the problem’s severity and your mechanical skills.
If you checked some basic issues like oil, filters, wiring, or sensors, and you found the error, you can try to resolve the issue. If you are comfortable enough with changing a sensor or replacing fuel, this will save you labor money.
If the problem is more serious and it includes replacing the components of the camshaft or the crankshaft, you should contact the repair service. Also, you can consult repair forums for repair advice. Check the repair manual and make an estimate. Think about the issue and whether you would be able to fix it.
Stay Ahead of The Game: Preventing P0011 Code Recurrence
The best way to prevent these problems is to maintain the vehicle properly. Also, implementing some good driving habits will help.
Maintenance Tips to Avoid Future Issues
The most important thing is to follow through the regular maintenance. That includes changing the oil and other fluids on time. With it comes changing all the filters. That way, you are keeping the system well-lubricated and clean of dirt. That is the best way to avoid expensive repairs.
Best Practices for Engine Health
Besides maintenance, your driving habits can improve overall engine health. Avoid intense revving and pressing the acceleration pedal too hard. Do not let your car go on the reserve too often. Also, from time to time, check for any leaks below the car.
FAQs
Can You Drive with Code P0011?
Yes, you can drive with code P0011. But, if you avoid resolving this issue, it will only grow bigger. Eventually, you will need to fix that problem. The wait will increase the repair cost. What once started as a problem with wiring, or a sensor, may result in problems for expensive engine components.
Can Camshaft Timing Cause a Misfire?
The worn or broken camshaft will cause problems with the engine timing. That will result in the engine misfiring. That is one of the first symptoms of a P0011 code.
Can the Crankshaft Sensor Cause Engine Code P0011?
Yes, the crankshaft sensor can cause engine code P0011. If the sensor is broken, it will send information that the camshaft is more advanced than the ECM requested.
What Causes Engine Banging with P0011 and P0021 Codes?
The banging you hear with codes P0011 and P0021 is the lifter and the camshaft hitting each other. This prolonged issue can result in a destroyed lifter. It can also cause other major problems for the engine.
Need More Help with a P0011 Code?
If you are unsure how to handle this problem, contact a mechanic. They will analyze the vehicle, and they know the standard repair procedure. You could also check a couple of mechanics, check their reliability, and get an estimate for repairs. With these articles, you can grasp certain things, but if you are new to this, an article is not a solution.
