Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks there's too much air and not enough fuel in part of the engine when some cylinders are turned off to save fuel.
The code P2E6A indicates that the air-fuel mixture is too lean (too much air, not enough fuel) in Bank 2 of the engine during cylinder deactivation.
When certain cylinders in the engine are deactivated to improve fuel efficiency, the engine control module (ECM) monitors the air-fuel mixture. If the ECM detects that the mixture is too lean in Bank 2 during this process, it triggers the P2E6A code. This can affect engine performance and emissions.
• Check Engine Light is on
• Poor fuel economy
• Rough engine idle
• Vacuum leak in Bank 2
• Faulty fuel injectors
• Exhaust leak in Bank 2
Lean Condition: A situation where there is more air than fuel in the air-fuel mixture.
Cylinder Deactivation: A system that turns off some engine cylinders to save fuel.
• Use an OBD-II scanner to confirm the code.
• Inspect for vacuum leaks in Bank 2.
• Check the fuel injectors for proper operation.
• Fix any vacuum leaks found in Bank 2.
• Replace or clean faulty fuel injectors.
• Repair any exhaust leaks in Bank 2.
• OBD-II scanner
• Vacuum gauge
• Fuel injector cleaner
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly check and maintain the fuel system.
• Inspect for vacuum leaks periodically.
• Ensure exhaust system is intact.
Engine Performance
• Have your vehicle inspected by a professional if the Check Engine Light comes on.
• Avoid driving with a lean condition as it can damage the engine.
Check with the vehicle manufacturer for specific warranty coverage.
Cylinder deactivation systems have been used to improve fuel efficiency, but they can sometimes lead to lean conditions if not properly maintained.
Moderate – Should be addressed to prevent potential engine damage.
Ignoring this code can lead to increased emissions and potential engine damage, which may not comply with emissions regulations.
• Engine running with cylinder deactivation active
• Normal operating temperature
Bank 2 refers to the side of the engine opposite Bank 1, usually the side without cylinder 1.
Q: What does 'Bank 2' mean?
A: Bank 2 is the side of the engine opposite to Bank 1, typically the side without cylinder 1.
Q: Can I drive with a P2E6A code?
A: It's not recommended to drive for long with this code, as it can lead to engine damage.
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