TORQDEX // POWERTRAIN DTC
Cylinder 2 Misfire Detected
Misfire activity has been detected repeatedly on cylinder 2.
00 // CODE DEFINITION
What P0302 means
P0302 identifies abnormal combustion associated specifically with cylinder 2.
Ignition, injector, compression, intake, wiring, or mechanical problems may be responsible.
01 // COMMON SYMPTOMS
What you may notice
02 // COMMON CAUSES
What can trigger P0302?
Spark fault
A plug, coil, wire, or connection may be preventing proper ignition.
Injector problem
Cylinder 2 may have insufficient or inconsistent fuel delivery.
Compression loss
Valve, ring, gasket, or valvetrain problems may reduce cylinder contribution.
03 // DRIVEABILITY
Can I keep driving with P0302?
Driving may be possible if the misfire is mild, but avoid continued driving if the check-engine light is flashing, the engine is shaking heavily, or power is significantly reduced. An active misfire can damage the catalytic converter.
04 // DIAGNOSTIC ORDER
Start here
Review cylinder misfire data
Confirm cylinder 2 is consistently accumulating misfire counts.
Inspect or swap ignition components
Determine whether the fault follows a plug or coil.
Evaluate the injector
Check electrical command and fuel delivery.
Test compression
Compare cylinder 2 with the other cylinders.
05 // COMMON REPAIR AREAS
Systems commonly involved
These are common areas associated with P0302. Testing should confirm the actual fault before parts are replaced.
Spark fault
A plug, coil, wire, or connection may be preventing proper ignition.
Injector problem
Cylinder 2 may have insufficient or inconsistent fuel delivery.
Compression loss
Valve, ring, gasket, or valvetrain problems may reduce cylinder contribution.
06 // DIAGNOSTIC PRINCIPLE
Confirm the fault before replacing parts
P0302 identifies a condition detected by the vehicle control system. It does not automatically identify one failed component. Test the affected system before replacing parts.
07 // RELATED TORQDEX DIAGNOSTICS
Related diagnostic guides
Continue troubleshooting by symptom and system. These TorqDex guides cover common diagnostic paths associated with this trouble code.
08 // RELATED CODES