Single Cylinder Misfire (Cylinder not Specified)
One cylinder in your engine isn't firing properly, like a spark plug that occasionally fails to ignite the fuel mixture. The ECU detected this misfire but couldn't pinpoint which specific cylinder is causing the problem.
The ECU monitors crankshaft acceleration between cylinder firing events using the crankshaft position sensor. When a cylinder misfires, that revolution shows abnormal deceleration. The system compares this against baseline thresholds to detect when one or more cylinders are not combusting fuel properly.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Crankshaft Acceleration Rate | Consistent acceleration per cylinder firing | Deviation exceeds 3-8% depending on engine load and RPM |
| Misfire Counter | Less than 1 misfire per 1000 revolutions | More than 1-2 misfires per 1000 revolutions triggers code |
Code P0324 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0324 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.