P1144
Air Assist Control Valve Circuit Malfunction
P1144 is an OBD-II diagnostic trouble code meaning: Air Assist Control Valve Circuit Malfunction. Common causes: additional air control valve malfunction, open or short circuit in valve circuit. Estimated repair cost: $17–56.
Symptoms
- Unstable idle speed
- Problems starting the engine, especially when cold
- Floating speed
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Additional air control valve malfunction
- Open or short circuit in valve circuit
- Poor contact in valve connectors
- Problems with the relay or circuit fuse
- Malfunction of the engine control unit (rare)
How to Fix
- Check the condition of the additional air control valve
- Check the integrity of wires and connections in the valve circuit
- Check fuses and relays associated with the system
- Test valve resistance (compare with factory parameters)
- If necessary, replace the additional air control valve
Related codes
Error P1144 by Vehicle Brand
FAQ
What does the P1144 code mean?
P1144 is an OBD-II diagnostic trouble code that indicates: Air Assist Control Valve Circuit Malfunction
What causes a P1144 error code?
The most common causes of P1144 include: Additional air control valve malfunction; Open or short circuit in valve circuit; Poor contact in valve connectors; Problems with the relay or circuit fuse.
How do I fix a P1144 diagnostic trouble code?
To fix P1144: Check the condition of the additional air control valve. Check the integrity of wires and connections in the valve circuit. Check fuses and relays associated with the system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1144?
Yes, but get it checked soon
How much does it cost to fix P1144?
The estimated repair cost for P1144 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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