P2347

DTC P2347, sometimes indicated as P234700 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the ignition system causing cylinder 12 above knock threshold.

The knock threshold is the point at which the engine begins to knock or ping. When this threshold is crossed, the ECU will retard the timing in order to prevent further knocking. If the knock threshold continues to be crossed, the ECU may eventually disable the engine.
There are a few things that can cause the knock threshold to be crossed, including low octane fuel, engine knock, or a malfunctioning knock sensor.
If you are experiencing knocking or pinging, you should first check to make sure that you are using the correct octane fuel. If you are, you may need to have your engine knock sensor checked for damage or malfunctions.

• P2347: 12 Above Knock Threshold
• P2347: Cylinder 12 Above Knock Threshold
• P2347: Cylinder 12 – above knock threshold
• P2347 00: Cylinder 12 - above knock threshold