What P0302 means
Diagnostic Trouble Code (DTC) P0302 stands for Cylinder 2 Misfire Detected. This is a generic OBD2 diagnostic trouble code indicating that the engine computer (ECU) has registered an operational anomaly in the powertrain (p) systems.
When this error registers, the ECU records a freeze frame of sensor data and lights up the Check Engine Light on your dashboard to notify the operator of a system fault.
Symptoms of OBD2 Code P0302
When code P0302 is active, your car might exhibit the following common symptoms:
- Engine shake at idle
- Loss of power
- Flashing MIL
Common Causes of Code P0302
Faults that trigger this code typically include:
- Cause 1: Failed spark plug or coil on Cylinder 2
- Cause 2: Clogged fuel injector on Cylinder 2
- Cause 3: Intake valve leakage on Cylinder 2
Can you drive with a P0302 code?
No. Get it diagnosed immediately to protect your catalytic converter.
Expected Repair Cost Band
$60 - $200.
Related Diagnostic Trouble Codes
If you have scanned multiple codes, see these related guides for troubleshooting context:
Frequently Asked Questions
It is the second cylinder in the engine firing order, typically adjacent to cylinder 1.