P2347 OBD-II: Cylinder 12 Above Knock Threshold

P2347 Severity

Urgent

Should you fix P2347 yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

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P2347 Summary Find a Repair Shop P2347 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P2347?

If the fuel injector does not allow sufficient fuel into the cylinder, it will cause the cylinder to run lean. This will create an engine knock. The injectors have a calibration number on the side of them that needs to be entered into the engine computer (PCM) anytime the injector is replaced. If the number is not entered into the PCM, code P2347 will be stored.

OBD II Fault Code

OBD II P2347

OBD-II Code Engine may run rough is defined as a Cylinder 12 Above Knock Threshold

Engine may run rough Symptoms

Engine may not start
Engine may run rough

Common Problems That Trigger the P2347 Code

Fuel injector calibration needs to be entered into the PCM
Fuel injector failure
Powertrain Control Module (PCM) failure
Wiring issue

Common Repairs Needed for the P2347 Code

OBD Code Resources

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OBD II Fault Code

OBD II P2347

OBD-II Code Engine may run rough is defined as a Cylinder 12 Above Knock Threshold

P2347 OBD-II: Cylinder 12 Above Knock Threshold

Should you fix P2347 yourself?

What causes OBD-II fault code P2347?

Need a P2347 diagnosis? Trust our experts.

OBD II Fault Code

Engine may run rough Symptoms

Common Problems That Trigger the P2347 Code

Common Repairs Needed for the P2347 Code

OBD Code Resources

Ask our experts about P2347.

Other OBD-II Codes

OBD II Fault Code

Engine may run rough Symptoms

Common Problems That Trigger the P2347 Code

Common Repairs Needed for the P2347 Code