P2342 OBD-II: Cylinder 7 Above Knock Threshold
P2342 Severity
Should you fix P2342 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.
What causes OBD-II fault code P2342?
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 P2342 will be stored.
OBD II Fault Code
- OBD II P2342
OBD-II Code Engine may run rough is defined as a Cylinder 7 Above Knock Threshold
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 P2342 will be stored.
Engine may run rough Symptoms
- Engine may not start
- Engine may run rough
Common Problems That Trigger the P2342 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 P2342 Code
Ask our experts about P2342.
RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.
Call us at 877-913-1554
Available 9am – 6pm ET Monday through Friday
