P12EA
Cylinder Deactivation Exhaust Flow Valve Closed Position Bank 1
P12EA is an OBD-II diagnostic trouble code meaning: Cylinder Deactivation Exhaust Flow Valve Closed Position Bank 1. Common causes: exhaust gas flow control valve malfunction, problems with wiring to the valve. Estimated repair cost: $28–89.
Symptoms
- Check Engine Light Is On
- Deterioration in acceleration dynamics
- Increased fuel consumption
- Rough engine idling
- Cylinder deactivation system is not activated
Causes
- Exhaust gas flow control valve malfunction
- Problems with wiring to the valve
- Mechanical valve jamming
- Engine control unit malfunction
- Damage to vacuum tubes (if the valve is vacuum type)
How to Fix
- Check the condition of the exhaust gas flow control valve
- Check the integrity of the wiring harness and connectors
- Check the functionality of the valve (electrical resistance, mechanical stroke)
- Clean or replace faulty valve
- Check the operation of the cylinder deactivation system after repair
Related codes
FAQ
What does the P12EA code mean?
P12EA is an OBD-II diagnostic trouble code that indicates: Cylinder Deactivation Exhaust Flow Valve Closed Position Bank 1
What causes a P12EA error code?
The most common causes of P12EA include: Exhaust gas flow control valve malfunction; Problems with wiring to the valve; Mechanical valve jamming; Engine control unit malfunction.
How do I fix a P12EA diagnostic trouble code?
To fix P12EA: Check the condition of the exhaust gas flow control valve. Check the integrity of the wiring harness and connectors. Check the functionality of the valve (electrical resistance, mechanical stroke). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P12EA?
Yes, but get it checked soon
How much does it cost to fix P12EA?
The estimated repair cost for P12EA is $28–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat