The completely redesigned 2022 Toyota Tundra introduces a revolutionary new powertrain—the 3.5L twin-turbocharged V6 i-FORCE engine replacing the previous V8. When P0306: Cylinder 6 Misfire Detected appears, your new Tundra has identified combustion problems in cylinder 6 of the all-new engine architecture.
New Generation Engine Technology
Toyota's new i-FORCE twin-turbo V6 produces 389 horsepower (437 hp with i-FORCE MAX hybrid). Cylinder 6 occupies a position on the rear bank of this modern forced-induction engine. Unlike the previous port-injected V8, the new engine uses direct injection, requiring attention to carbon buildup potential over time.
P0306 Causes on the New Platform
Ignition coil issues can affect any cylinder, with rear-bank positions experiencing more heat exposure. Spark plug degradation reduces combustion efficiency. Direct injection creates potential for intake valve carbon deposits. Fuel injector faults affect precise fuel delivery critical for turbocharged combustion. Turbocharger boost leaks can create cylinder-specific issues. Wastegate problems may affect engine performance.
Diagnostic Approach for New Tundra
Use Toyota TechStream or updated diagnostic equipment compatible with the new Tundra platform. Scan for all codes including turbocharger-related faults. Access cylinder 6 and inspect ignition components. Check spark plug condition—the new engine may have different wear patterns than the old V8. Test fuel injector operation. Monitor turbo boost pressures for consistency across operating conditions.
First-Year Platform Considerations
As a redesigned truck, software updates may address early production issues. Consult your dealer if unusual symptoms accompany P0306, as the new powertrain's learning curve affects both owners and technicians.