P0014 Toyota GR Corolla Code: Camshaft Position Timing Over-Advanced or System Performance Bank 1

OBD-II Trouble Code P0014 in Toyota GR Corolla indicates Camshaft Position B – Timing over-Advanced or Performance (Bank 1), which means the exhaust camshaft of the first cylinder may be too advanced.

In this article, I will be talking about the P0014 trouble code in Toyota GR Corolla, its symptoms, causes, and how to fix it.

P0014 Toyota GR Corolla Trouble Code Definition

P0014 Toyota GR Corolla Code Camshaft Position Timing Over-Advanced or System Performance Bank 1

P0014 trouble code in Toyota GR Corolla is defined as Camshaft Position Sensor B Timing Over-Advanced or System Performance (Bank 1).

What Does The P0014 Code Mean In Toyota GR Corolla?

The P0014 code in Toyota GR Corolla is an internal generic code that signals excessive camshaft positioning (CMP) timing advance.

You may see it alongside codes like P0011, and P0012.

The location of the error is indicated by the trouble code P0014Opens in a new tab.

Bank 1 is the location in the engine that contains the first cylinder. Position “B”, which refers to an exhaust crankshaft, can be either located at the rear or right-hand side depending on the vehicle model and make/model.

The P0014 trouble code indicates that the camshaft is too advanced. This means that it exceeds a threshold set in the Engine Control Module (ECM), while either advancing its timing or retarding it.

Toyota P0014 GR Corolla Code Possible Causes

Toyota GR Corolla generates the P0014 trouble codes when it detects that the exhaust camshaft bank 1 is either over-advancing or ahead of schedule.

A check engine light will go on to alert drivers. The ECU will also store the P0014 code.

Toyota GR Corolla could have a number of reasons for the P0014 Code:

  • Improper Camshaft Timing
  • Defective Camshaft Timing Control Solenoid
  • Failed variable camshaft tuning or variable valve timing
  • Oil lines of the variable valve timing solenoid (VVT) or variable camshaft tuning(VCT) become clogged.
  • Low Oil Levels
  • Oil Pressure Low
  • Defective Camshaft Position Sensor
  • A neglected crankshaft position sensor
  • Broken wiring
  • Defective timing chains or timing belts
  • Defective Timing Tensioner

Toyota GR Corolla P0014 Code Common Symptoms

  • The Check Engine Light lights up, which indicates an issue.
  • Camshaft problems could be the cause of this problem. As you turn the key, listen out for clicking sounds when the car starts and stops. It may eventually stop working if it isn’t fixed.
  • Stalling may occur in the same way as problems with starting. Your vehicle may have difficulty idling, or stall randomly at lower speeds.
  • P0014 Code Can Cause Significant Decreasing Fuel Economy. The P0014 codes can cause sudden drops in fuel economy. This is easier to detect.
  • Noise and vibration from your Engine: A problem with the camshaft can result in a rough ride because of an improper fuel-air blend. You might notice your vehicle shaking more than normal, emitting more smoke, or running much louder.
  • Emission tests for vehicles will be failed due to engine exhaust.

Is It Safe To Drive a Toyota GR Corolla With a P0014 Code?

No. It is not safe for you to drive a Toyota GR Corolla with the trouble code P0014. It is possible to cause complete engine failure by ignoring an issue with the timing of your camshafts. If this happens, you will need to replace the engine.

People become anxious when their vehicle isn’t starting or responding properly. The root cause of the problem can determine the extent of the problem.

Broken timing chains can cause serious engine damage. Neglecting repairs to your vehicle could lead to further damage and costly repair costs. Therefore, it is important that you get to a mechanic quickly to address the problem.

Toyota GR Corolla P0014 Code: How To Diagnose

Without the right information and expertise, diagnosing a Toyota GR Corolla’s P0014 code can seem daunting.

Anyone with some computer knowledge can quickly identify the P0014 code:

  1. Connect an OBD2 scanner, and look for trouble codes. It’s time for you to diagnose any problems related to either the crankshaft positioning sensor or the camshaft location sensor to determine if they can solve your P0014 problem.
  2. Make sure your engine oil level is correct. Low oil levels can be corrected by adding oil or replacing both the filter and oil. Clear away any P0014 error codes.
  3. Check your oil filler cap and service manual for any signs of engine sludge. There may be an accumulation of engine oil in the engine’s oil lines, which could lead to clogging at the variable valve timing (VVT), or variable camshaft tune (VCT) engine control valves. This could mean that both oil types need to be changed and both components cleaned.
  4. Use your diagnostic scanner to test the variable timing (VVTOpens in a new tab.
  5. As soon as possible, take out the variable camshaft tune (VCT), and control valve solenoid. Clean its oil passages with a compressed or suitable cleaning solution.
  6. Verify that the crankshaft and camshaft position sensors are working correctly to ensure they are.
  7. Check the timing of the engine camshaft by manually checking it. For instructions on how to do this, consult your owner’s manual. If the timing belt/chain is not working properly, remove it from the engine and inspect it for damage.

Toyota GR Corolla P0014 Code: Common Diagnosing Mistakes

An error that Toyota GR Corolla makes when diagnosing the P0014 code is mistaking the timing chain or belt for faulty.

Replacement can be costly, and in some cases, the P0014 codes could be due to other problems. For accurate results, you need to do a complete diagnostic before beginning repairs.

Toyota P0114 indicates a problem with the VVT or CVT system. It regulates camshaft timing. The other causes of P0114 could be an errant camshaft positioning sensor or low oil level.

How Much Does It Cost To Repair P0014 Code In Toyota GR Corolla

It costs $175 to repair the P0014 code in Toyota GR Corolla. The part costs $75 while labor costs $100.

What Repairs Can Fix The P0014 Code in Toyota GR Corolla?

  • You can add or remove oil from your engine and also change the oil filter.
  • Cleaning oil lines that are associated with variable camshaft timing (VCT) and variable valve timing (VVT).
  • Replace the solenoid for variable camshaft timing (VCT) and variable valve timing (VVT), or clean it.
  • Repair of the timing belt/chain
  • Change the solenoid for the camshaft timing valve solenoid
  • Set the Camshaft Position Sensor
  • Replace the crankshaft position sensor
  • Fix any defective wiring

How To Fix The P0014 Code In Toyota GR Corolla

  • Clearing error codes and performing a road test
  • You can improve the performance of your engine and extend its life by changing the oil and filter.
  • Repair or replace wiring to bank 1’s exhaust camshaft oil-control valve.
  • Bank 1 needs to replace the oil control valve for its exhaust camshaft oil.
  • When replacing the timing chains or camshaft phasers, follow the instructions provided in the service guide.

In Conclusion

Toyota GR Corolla’s P0014 code is indicative of a timing problem in the camshaft. The cause for this is usually an improper timing of camshafts and you need to correct this immediately.

However, it could also be caused by insufficient oil or a malfunctioning sensor at the camshaft position – both of which can usually be fixed for less than $200.

Reach out to a mechanic if you are unable to fix this problem by yourself.

Bob Semana

Hi there, I am a Mechanical Engineer that specializes in AC, Alternators, Batteries, Cooling systems, and Drive Train issues.

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