Guide To P0012 OBD Error Code Solutions

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At the first indication, Engine Warning Light turns up almost immediately it senses the OBD code error. This directly impacts the engine performance as it struggles with power and acceleration as well as failed fuel system causing increased consumption of fuel by the engine.

OBD-II Code P0012 is defined as "A" Camshaft Position - Timing Over-Retarded

P0012 is the OBD-II generic code indicating the engine control module (ECM) has determined that the intake camshaft timing for bank 1 is more retarded than what the ECM has commanded it be. This over-retarded timing condition could be during the advancing or retarding phase of the camshaft timing.

What causes this problem with the "A" Camshaft Position - Timing Over-Retarded?

• The variable camshaft timing and the oil control valve might get stuck in the open position
• The camshaft phaser is damaged and stuck in the retarded position
• There can be some oil flow problems to the VCT piston and phaser

1. Engine Control Module - A faulty engine control module can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Powertrain Control Module - P0012 code can display due to damaged powertrain control module. So, it is very important to replace the powertrain control module with us at equitable prices.
3. Catalytic Converter - Catalytic converters can overheat because of excessive amounts of unburned gas caused by a misfiring spark plug or a leaky exhaust valve. In addition, a faulty oxygen sensor can cause overheating. Replace your old catalytic converter now!
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5. Auto Switches & Sensors - Common causes behind that P0012 error code can be defective switches or faulty sensors. So, it will be a good decision to replace them now.
6. Camshaft & Parts - Are you facing OBD error P0012 code? You can always get this issue resolved with new camshaft parts. Purchase top notch camshaft from us at best prices.
7. Oil Control Valve - A faulty oil control valve can be a major reason why OBD Code P0012 can trigger.

We care for our customers and that’s why we can totally understand your problem. That’s the reason why we have listed out some major symptoms behind the flashing up of OBD Code P0012. They are mentioned here as follows:

Common Symptoms

• The check engine light may be turned on by the ECM if the timing cannot be commanded to move
• Due to the retarded timing position, the engine will have a hard start condition
• Fuel mileage may start decreasing because the camshaft might not in a position to get the best possible fuel mileage
• Depending on camshaft position the engine may stall, hesitate, and run rougher than normal
• The vehicle may start failing at the emissions test

Following are the steps to be followed to correct the OBD Code P0012 error.

• Reset the fault codes and performing a road test to see if the OBD code flashes again
• Repair or replace the faulty/damaged wiring or connection to the camshaft oil control solenoid
• Replace the camshaft oil control valve for bank 1 intake camshaft as per the specifications
• Check the timing chain alignment for jumped timing problems and repair as needed

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It is very important to use the correct tools to diagnose a problem with a very professional outlook. Each and every default component needs to be examined as the ECM sensor comes into play. Follow the following step by step analysis to do the diagnosis of error code P0012

• Use a professional grade Diagnostic scan tool to check for all codes present (must be used to show live sensor data)
• Observe and take note of any freeze frame data that is associated with the code along with the current collected data after the test drive
• After the confirmation of P0012, clear the code and perform a test drive under the same circumstances shown in the freeze frame data
• If the P0012 code returns, visual inspection is performed to check the integrity of the wiring and sensor
• Scan with a tool used to monitor live data from Bank 1 if the previous step is found to be okay
• Check and test the ECM if the sensor checks out as under the rarest of chances it may be possible that ECM is faulty and needs replacement

Common Mistakes When Diagnosing the P0012 Code

Follow these simple guidelines to prevent mistakes:

• Always verify the failure before attempting any repairs
• Do a thorough visual check for any problems with the wiring or connections to the components
• Follow the pinpoint test step-by-step to help prevent a misdiagnosis
• Do not replace any parts unless directed by the pinpoint or visual testing