P1364 Audi Code - Cylinder 4 Ignition Activation Circuit Open
Quick Answer
The Engine Control Module (ECM) must determine if a misfire is occurring and identify the specific cylinder(s) and the severity of the misfire event and whether it is emissions relevant or catalyst damaging. Common causes include Faulty Ignition Coil Cylinder 4, Ignition Coil Cylinder 4 harness is open or shorted, Ignition Coil Cylinder 4 circuit poor electrical connection. 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
- P1364 Audi indicates Cylinder 4 Ignition Activation Circuit Open.
- Common causes
- Common causes include Faulty Ignition Coil Cylinder 4, Ignition Coil Cylinder 4 harness is open or shorted, Ignition Coil Cylinder 4 circuit poor electrical connection.
- 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.
Code P1364 Audi Description
The misfire/engine roughness calculation is derived from the differences in the period duration (T) of individual increment gear segments. Each segment period consists of an angular range of 120° crank angle that starts 78° before the Top Dead Center (TDC).
If the expected period duration is greater than the permissible value a misfire fault for the particular cylinder is stored in the fault memory of the ECM. Depending on the level of misfire rate measured the control unit will illuminate the "Service Engine Soon" light, may cut off fuel to the particular cylinder, and may switch lambda operation to open-loop. All misfire faults are weighted to determine if the misfire is emissions relevant or catalyst damaging.
What are the Possible Causes of the DTC P1364 Audi?
- Faulty Ignition Coil Cylinder 4
- Ignition Coil Cylinder 4 harness is open or shorted
- Ignition Coil Cylinder 4 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1364 Audi?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1364 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1364 Audi Code
What does the OBDII code P1364 mean on an Audi?
1. P1364 indicates an open circuit in the ignition activation circuit for cylinder 4, meaning the ECU is unable to properly control the ignition for that cylinder. 2.
What are the common symptoms of code P1364 in an Audi?
Symptoms may include misfires in cylinder 4, rough idling, reduced engine performance, poor fuel efficiency, and possibly an illuminated check engine light. 3.
What causes the P1364 code to appear on an Audi?
Common causes include a faulty ignition coil, damaged or corroded wiring in the ignition circuit, a defective spark plug, or an issue with the ECU. 4.
Can a faulty ignition coil trigger the P1364 code on an Audi?
Yes, a faulty ignition coil for cylinder 4 is one of the most common causes of this code. 5.
How do you diagnose the P1364 code on an Audi?
Start by inspecting the ignition coil, spark plug, and wiring for cylinder 4. Use a multimeter to check for continuity in the circuit and scan for any additional codes that may help pinpoint the issue. 6.
Can I drive my Audi with the P1364 code?
It’s not recommended to drive with this code active, as it can lead to engine damage, increased emissions, and reduced performance due to misfiring. 7.
How do you fix the P1364 code on an Audi?
Repairs may involve replacing the faulty ignition coil or spark plug, repairing damaged wiring, or, in rare cases, addressing ECU issues. 8.
Will clearing the P1364 code fix the problem?
No, clearing the code may temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning. 9.
How much does it cost to repair the P1364 code on an Audi?
The cost depends on the cause. Replacing an ignition coil can range from $100 to $300, while repairing wiring or addressing ECU issues may cost more. 10.
Can a bad ECU cause the P1364 code on an Audi?
While rare, a malfunctioning ECU can cause the P1364 code by failing to properly send signals to the ignition circuit for cylinder 4.
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