Code P1374 Description Audi
The diagnostic code P1374 (DTC) for Audi vehicles indicates that there is a short circuit in the ignition circuit of cylinder 7, causing it to connect to the battery’s positive voltage (B+) when it should not. This issue can disrupt the proper functioning of the ignition system, which may lead to misfires, poor engine performance, and even engine damage if not resolved.
Common Causes of Audi Code P1374
NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.
- Faulty ignition coil or spark plug
- Damaged or corroded wiring in the ignition circuit
- Poor electrical connection or loose wiring
- ECM malfunction or software issue
- Water or moisture intrusion into ignition system components
Symptoms of Audi Code P1374
- Engine misfires or hesitation during acceleration
- Rough idle or stalling
- Decreased fuel efficiency
- Illuminated check engine light
- Engine knocking or rattling noises
How to Fix Audi Code P1374
- Start by visually inspecting the ignition coil, spark plug, and wiring of cylinder 7 for any signs of damage or corrosion.
- Use a multimeter to test the wiring continuity and check for short circuits.
- If a faulty component is identified, such as a damaged ignition coil or spark plug, replace it with a new one.
- Clear the DTC with an OBD-II scanner and test the vehicle to ensure the issue has been resolved.
- If the problem persists, consult a professional mechanic or dealership for further diagnosis and repair.