P1344 Code - Misfire During Start Cylinder 2
Quick Answer
As part of the CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also 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 Spark Plug, Faulty Ignition Coil, Intake vacuum leak. 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
- P1344 indicates Misfire During Start Cylinder 2.
- Common causes
- Common causes include Faulty Spark Plug, Faulty Ignition Coil, Intake vacuum leak.
- 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 P1344 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 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 cutoff 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 P1344?
- Faulty Spark Plug
- Faulty Ignition Coil
- Intake vacuum leak
- Faulty Camshaft Position Sensor
- Ignition Coil harness is open or shorted
- Ignition Coil circuit poor electrical connection
How to Fix the DTC P1344?
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 P1344 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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Information for Specific Makes
- P1344 Audi — Ignition Coil Output Stage 2 Short To B+
- P1344 BMW — Misfire During Start Cylinder 2
- P1344 Hyundai — #4 Ion Line Open
- P1344 MINI — Misfire During Start Cylinder 2
- P1344 Volkswagen — Ignition Coil Output Stage 2 Short To B+
Frequently Asked Questions about P1344 Code
1. What are the common symptoms of OBDII code P1344 (Misfire During Start Cylinder 2)?
- Common symptoms include rough idle, engine misfires, decreased fuel efficiency, and potential difficulty starting the vehicle.
2. What are the possible causes of OBDII code P1344?
- Causes can include faulty spark plugs, ignition coils, fuel injectors, vacuum leaks, low fuel pressure, or issues with the engine's timing.
3. How can I diagnose the source of OBDII code P1344?
- Diagnosis typically involves inspecting and testing components such as spark plugs, ignition coils, fuel injectors, and performing a compression test to determine if there are any mechanical issues.
4. Is it safe to drive with OBDII code P1344 active?
- It is not recommended to drive with this code active as it can lead to further engine damage and decreased performance over time.
5. Can I repair OBDII code P1344 myself?
- Depending on your level of automotive knowledge, you may be able to address the issue yourself by replacing faulty components like spark plugs, ignition coils, or fuel injectors.
6. How much does it typically cost to repair OBDII code P1344 at a repair shop?
- The cost of repairs can vary depending on the specific cause of the code, but it may range from a couple of hundred dollars to over a thousand dollars, including parts and labor.
7. Are there any maintenance tips to prevent OBDII code P1344 from occurring?
- Regularly scheduled maintenance, such as changing spark plugs and fuel filters at recommended intervals, can help prevent issues that could trigger this code.
8. Can a misfire during start on cylinder 2 cause other problems in the vehicle?
- Yes, unresolved misfires can lead to damage to the catalytic converter, increased emissions, and potential long-term engine issues if not addressed promptly.
9. How urgent is it to address OBDII code P1344?
- It is recommended to address this code as soon as possible to prevent further damage to the engine and ensure optimal performance of the vehicle.
10. Will resetting the OBDII code P1344 make it go away permanently?
- Resetting the code may clear it temporarily, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.
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