Our certified mechanics come to you · Get a fair and transparent estimate upfront
P2647 is a diagnostic trouble code (DTC) for "System Too Rich (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
A Rocker Arm Actuator System Stuck on Bank 1
This trouble code indicates that the powertrain control module has detected a malfunction in the intake camshaft rocker arm actuator system (A). This code is usually found in vehicles that have variable valve timing.
Some of the potential causes of this trouble code would include:
The engine timing may be out of specification
A faulty oil control valve or restricted orifice may be a factor
Damaged wiring or connector that is associated with the oil control valve may be present
Low oil pressure / Low engine oil may be causing this issue
A faulty powertrain control module may exist
Symptoms of this trouble code that the driver may experience would include:
The first thing a mechanic would do to diagnose this issue would be to check the engine oil level and check for a low oil pressure light. After that the mechanic would ensure that the engine timing is correct using the marks supplied by the manufacturer. If all timing marks appear to be correct, the mechanic would then test the variable valve timing parts to ensure proper function. Next, the mechanic would test all circuitry related to the variable valve timing system. Finally, the mechanic would use a high tech scan tool to test the powertrain control module. If any parts turn out to be faulty during this diagnosis, they would need to be replaced before moving to the next step. The mechanic would likely explain to the customer that multiple parts may need to be replaced and multiple diagnostic tests may need to be carried out.
It is very easy to replace other parts in error when low or wrong engine oil is the actual cause of this issue. It is very important that checking the engine oil is the first step in the diagnostic process of this trouble code.
This trouble code would be considered serious regardless of the cause but more serious if a timing issue is present. This can cause severe engine damage especially in interference engines. It is important to have this trouble code diagnosed and repaired as soon as possible.
Repairs that can resolve the issues that are caused by this trouble code would include:
Replacing the oil control valve or other variable valve timing components
Repairing or replacing wiring or connectors that are associated with the variable valve timing system
It is very important that the vehicle does not get driven much with this trouble code stored as severe engine damage may result. If this issue is not diagnosed sooner rather than later, the repair costs could increase significantly.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230