P1373 Code - Ignition Coil Cylinder 3 Early Activation Fault
Quick Answer
The P1373 diagnostic trouble code (DTC) refers to an early activation fault in the ignition coil for cylinder 3. Common causes include Faulty ignition coil, Wiring or connection issues, Engine control module (ECM) malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1373 indicates Ignition Coil Cylinder 3 Early Activation Fault.
- Common causes
- Common causes include Faulty ignition coil, Wiring or connection issues, Engine control module (ECM) malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1373 Description
The P1373 diagnostic trouble code (DTC) refers to an early activation fault in the ignition coil for cylinder 3. This code indicates that there is an issue with the timing of the ignition coil firing in cylinder 3, which can lead to misfires, poor engine performance, and potentially even engine damage if left unaddressed. The ignition coil is responsible for converting low voltage power from the battery into high voltage power to ignite the air-fuel mixture in the engine's combustion chamber. When the ignition coil for cylinder 3 activates too early, it can disrupt the timing of the combustion process, leading to a lack of power, rough idling, and increased fuel consumption.
Common Causes of P1373
- Faulty ignition coil
- Wiring or connection issues
- Engine control module (ECM) malfunction
- Spark plug issues
- Mechanical problem in cylinder 3
Symptoms of P1373
- Rough idling
- Loss of power
- Engine misfires
- Increased fuel consumption
- Engine stalling
How to Fix P1373
- Diagnose the issue using a scan tool to confirm the P1373 code and identify the specific problem with the ignition coil in cylinder 3.
- Inspect the ignition coil, wiring, and connections for any damage or corrosion. Replace any faulty components.
- Check and replace the spark plug in cylinder 3 if necessary.
- Test the ignition coil using a multimeter to ensure it is functioning properly.
- Clear the code and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P1373
The typical repair costs for addressing an ignition coil cylinder 3 early activation fault can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate.
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Code P1373 Information for Specific Makes
- P1373 Audi — Cylinder 7 Ignition Circuit Open
- P1373 Jaguar — Ignition Coil Cylinder 3 Early Activation
- P1373 Volkswagen — Cylinder 7 Ignition Circuit Open
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