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P0010 Code: Meaning, Symptoms, Causes, Diagnostics, And Fixes

If the P0010 OBD2 code triggers your check-engine light, then your vehicle is having an issue with the variable valve timing. Vehicles need correct valve timing and sensors measure emissions to maintain accurate timing. As vehicles speed up and slow down, sensors measure emissions to regulate valve timing. When the emissions levels and valve timing do not match, then the check engine light is triggered by the EMC.

Many times, variable valve timing problems will trigger more codes than P0010. Watch for codes like P0011 and P0012 as well as P0020 through P0022. You will find the code in vehicles that have variable timing in brands like Audi, Chevy, Dodge, Ford, Honda, and Toyota.

 When P0010 code is triggered, you have to check camshaft position actuator
When P0010 code is triggered, you have to check camshaft position actuator

P0010 Code Definition

“A” Camshaft Position Actuator Circuit (Bank 1)”

The P0010 code comes from the engine control module (ECM) after a message is sent from the sensor near the crankshaft and bank-1 camshaft. This code tends to be triggered when the RPMs are spinning at a high rate, and the computer tries to make changes to the valve lift. The sensors near the crankshaft and camshaft also watch fuel timing and ignition control. When the code is triggered, the check engine light will turn on, and the engine performance could drop.

What Does P0010 Mean?

The P0010 Generic code means that the timing is off between the crankshaft and camshaft in bank 1. The code is triggered if the sensor registers timing that is beyond what it expects. With variable valve timing, sensors adjust power levels at different rates of speed. If those numbers are off, the code is sent to the ECM and the check engine light illuminates. When the timing is off, fuel economy can also be off and your vehicle might run hard.

In a Chevy with variable valve or camshaft timing, the engine control module triggers the P0010 code. This happens when the variable timing is not reaching a preset number on the bank-1 side of the engine. 

In a Chevy Malibu, the P0010 code causes the check engine light to turn on, the timing of the valve lift is off. This is caused by the camshaft actuator struggling to set the valve lift, especially at high rates of speed.

The P0010 code is triggered in a Chevy Cobalt when the camshaft actuators have trouble keeping the timing correct on the valve lift. A Chevy Cobalt’s camshaft could lift up to 25 degrees to keep the engine running efficiently, no matter the speed. The camshaft actuators run on hydraulics with the power of engine oil. The camshaft actuator is necessary as it helps the engine adjust valve timing to maximize fuel economy.

What Are The Symptoms Of P0010 Code?

Along with an activated check engine light, other symptoms can occur when the ECM recognizes the P0010 code. Those symptoms include

  • Poor engine idle
  • Reduced fuel economy
  • Weak engine performance at high RPMs
  • Emissions test failure.

What Are The Causes Of P0010?

There are several causes that could trigger the P0010 code.

  • ECM software is outdated
  • ECM wiring damage
  • Damage to wiring in other sensors
  • Excessive wear to sensors
  • Insufficient number of oil changes
  • Gunky or sludgy oil
  • Low voltage in the solenoid valve
  • Engine timing is off

How Serious Is P0010 Code?

The P0010 code can be serious, as it affects the engine’s power. Vehicles can have reduced power as well as a weak performance at high speeds. Fuel economy can be noticeably decreased, too. These problems can also cause a vehicle to fail an emissions test. If there are problems with engine timing, your engine could be permanently damaged. If engine timing is determined to be the root of the problem, you should immediately take your car to a professional mechanic who is best suited to make necessary repairs.

How To Diagnose And Fix The Code P0010


To properly diagnose the code, you will need these tools:

  • OBD2 scanner
  • Set of hand tools
  • Digital voltage scope and attachments


  1. With the OBD2 scanner, check if other codes were triggered with P0010. Then, clear the codes.
  2. Use the OBD2 scanner again to look at freeze-frame data to find where the problem resides.
  3. Check the timing component in bank 1 to look for damage to the wiring and connectors. Also, check the solenoid valve for any damage. Then, clear the code with the OBD2 scanner.
  4. Use your set of hand tools to look for sludge or gunk in the engine. If you see any, clean it out. Then, clear the ECM code and scan to see if a problem still exists.
  5. If you still have a problem, then you have to change the timing component or actuator. You might need to use the voltage scope and attachments to do this. The process will vary between makes and models. It is best to rule out all other problems before you get to this step as it is a difficult and costly repair. After completing this repair, check the ECM code again.
  6. If a code is still registering, then you should take the car to a professional mechanic.

What Are Common Mistakes While Diagnosing Code P0010?

Mistakes can happen when diagnosing any codes. One common mistake is choosing to replace parts before you determine if the parts are actually bad. Another is failing to check sensor wiring, engine oil, and the actuator solenoid before making pricey repairs. Working through the diagnostic procedures can save you money, as you might only need oil flush or other inexpensive procedures.

Tips to Avoid P0010 in the Future

Since the P0010 code can be triggered by sludge in the engine oil, one way to avoid this code in the future is to get regular oil changes. It can also be helpful to have the engine oil flushed if you have sludge in it. Faulty wiring and an ECM in need of updating can cause the code to trigger. To keep your vehicle functioning properly, you should have your ECM updated at scheduled maintenance appointments. Also, be sure the wiring on your sensors is properly attached and cleaned.

Read more: P0496 Code: Meaning, Symptoms, Causes, Diagnostics, And Fixes

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