The 2022 Chevrolet Equinox features a 1.5L turbocharged 4-cylinder engine as its standard powerplant. This inline-4 contains only cylinders 1 through 4. When P0306: Cylinder 6 Misfire Detected displays, you're facing an anomalous code that cannot represent an actual misfire.
Four-Cylinder Only
The 2022 Equinox continues GM's 4-cylinder-only approach for this crossover. No V6 option exists. P0306 indicates a cylinder that doesn't exist in your vehicle, making it a diagnostic system error rather than an engine problem.
Causes of Erroneous P0306
Scanner misinterpretation of GM's turbocharged engine protocols causes false codes. Communication glitches between ECU and diagnostic tools generate incorrect data. Aftermarket OBD devices may interfere with proper data transmission. Generic scanners may not correctly interpret Equinox-specific data.
Diagnostic Protocol
Clear all codes and drive through various conditions. Use GM GDS or professional equipment for accurate readings. Inspect the OBD-II port for connection issues. Remove aftermarket devices temporarily. Check for legitimate misfire codes (P0301-P0304) if actual drivability concerns exist.
Professional Verification
If P0306 persists or accompanies actual symptoms, a GM dealer can diagnose using factory equipment and verify ECU software status.