The redesigned 2022 Acura MDX delivers premium three-row SUV capability with choice of powerful engines. When your MDX displays a P0304 code indicating a cylinder 4 misfire, understanding your engine configuration helps target accurate diagnosis.
Understanding P0304 in the MDX
The 2022 MDX offers the proven 3.5L V6 or the Type S's 3.0L turbocharged V6. In both V6 configurations, cylinder 4 is on the rear of the left bank. Both engines use individual coil-on-plug ignition allowing precise misfire detection.
Engine-Specific Considerations
The 3.5L V6 is Honda's reliable J-series engine. The Type S's 3.0L turbo delivers more power but operates under higher combustion pressures. Turbo models may have additional considerations including boost system integrity and carbon buildup potential.
Diagnostic Approach
Identify your engine and access cylinder 4 on the left bank. Inspect spark plug condition. On Type S, check for boost leaks. Verify no vacuum leaks exist in the intake system.
Resolution Process
Replace spark plugs with Acura specifications. Type S turbo may require more frequent plug replacement. Test ignition coil output. If within warranty, dealer diagnosis ensures proper repair.