P1354 MINI Code - Misfire During Start Cylinder 7
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
- P1354 MINI indicates Misfire During Start Cylinder 7.
- 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 P1354 MINI 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 P1354 MINI?
- 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 P1354 MINI?
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 P1354 MINI 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.
Need more information about the P1354 MINI code?
Need more information on how to fix the P1354 MINI code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1354 MINI code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1354 MINI Code
What does the OBDII code P1354 mean for a MINI?
P1354 indicates a misfire during the start sequence in cylinder 7, which can affect engine performance and drivability.
What are the common symptoms of code P1354 in a MINI?
Symptoms may include rough engine startup, reduced power, poor fuel economy, and a flashing or solid check engine light.
What causes the P1354 code in a MINI?
Common causes include faulty spark plugs, a malfunctioning ignition coil, wiring issues, or a problem with the fuel injector in cylinder 7.
Can a dirty or faulty fuel injector trigger the P1354 code?
Yes, a clogged or malfunctioning fuel injector in cylinder 7 can disrupt fuel delivery and cause a misfire during startup.
How can I diagnose the P1354 code in a MINI?
Start by inspecting the spark plugs, ignition coil, and wiring for cylinder 7. Use an OBDII scanner to confirm the code and check for related codes.
Can a vacuum leak cause the P1354 code?
Yes, a vacuum leak near cylinder 7 can lead to air/fuel mixture imbalances, potentially causing a misfire during startup.
Is it safe to drive a MINI with the P1354 code?
Driving with code P1354 may damage the engine or catalytic converter if the misfire persists. Address the issue promptly to avoid further problems.
How do I fix the P1354 code in a MINI?
Repairs may include replacing faulty spark plugs, ignition coils, or fuel injectors for cylinder 7, and addressing any wiring or vacuum leaks.
Can bad engine timing cause the P1354 code?
Yes, incorrect engine timing can disrupt the combustion process in cylinder 7 and lead to a startup misfire.
Will clearing the code resolve the P1354 issue?
Clearing the code temporarily removes it, but the underlying issue must be fixed to prevent it from returning.
Discuss the causes and fixes for P1354 MINI OBDII Code
Code P1354 MINI comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
