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The short guide below discusses the essentials of the code P000A.

What Does the P000A Code Mean?

Diagnostic trouble code (DTC) P000A stands for “Intake “”A” Camshaft Position Slow Response Bank 1.” It is stored when the actual position of the camshaft differs from the position that the powertrain control module (PCM) expects during camshaft phase changes.

The PCM uses the signal provided by the intake camshaft position sensor to determine the camshaft position. Then, the PCM cross checks this with the signal from the crankshaft to determine if the cam timing is reaching the intended indexing target within the allotted time window.

If the crankshaft doesn’t reach the reported index position related to the crankshaft quickly enough, the P000A code is stored.

camshaft 2 2
P000A is stored when the actual position of the camshaft differs from the position that the PCM expects during camshaft phase changes.

The “A” in code P000A refers to the intake camshaft. The “B,” on the other hand, refers to the exhaust camshaft. Bank 1 indicates the side of the engine that contains the #1 cylinder, while bank 2 refers to the opposite bank. There is only one bank if the engine is a straight or inline design.

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Read the next section to quickly learn the most likely causes of code P000A. If you’re planning a DIY fix, understanding how variable valve timing systems work could help you correctly address the issue. You can read our technical explanation here.

What are the Possible Causes of the P000A Code?

P000A is a generic code, so it can have several triggers. Here are the most common:

What are the Common Symptoms of the P000A Code?

Depending on the severity, other related DTCs may also be stored. The codes P000B, P000C, and P000D may appear alongside error code P000A. Below are the most common symptoms of a car with a P000A trouble code:

  • Check engine light is on
  • Increased emissions
  • Bad engine performance
  • Increase in fuel consumption
  • Engine rattling noise
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An illuminated check engine light is a common symptom of trouble code P000A.

How to Diagnose the P000A Code

To restore the optimal performance of your engine, the code P000A must be resolved immediately. Diagnosing it, however, can be tricky as it has many possible triggers. Keep in mind that the diagnostic and repair steps may vary depending on your vehicle’s make and model.

If you are determined to diagnose the code yourself, it is recommended that you consult a repair manual or repair database for the proper diagnostic process. Leave the job to a mechanic or technician if you are not well-versed with auto repair.

How to Fix the P000A Code

Like most OBD-II codes, the P000A code shares similar causes and symptoms with several other engine codes. Although this is a generic trouble code, it does not have a universal solution. It’s best to leave this matter to the experts if you aren’t confident in your automotive repair skills.

Code P000A could be triggered by anything from a faulty timing chain tensioner to a malfunctioning camshaft position sensor. If you’re set on resolving this code yourself, you must do your research thoroughly before starting repairs.

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All vehicles are different, so you should always refer to your owner’s manual before DIY-ing any repairs. Use trusted online auto repair sources for guidance.

Investing in an ALLDATA subscription is also a good idea. It provides detailed factory repair information that you can use to resolve issues in your vehicle. You can also use the subscription for other error codes that you may encounter in the future.

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About The Authors
Richard McCuistian, ASE Certified Master Automobile Technician
Richard McCuistian, ASE Certified Master Automobile Technician

Technical Reviewer at

Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.

CarParts Research Team Research Team

Automotive and Tech Writers

The Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

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Thom Moore

Very nice summary and guide!

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