DTC Detection Logic

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

The Engine Control Module (ECM) detected a cylinder 4 misfire.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0304-00	CYL_4_MISFIRE (Cylinder 4 Misfire Detected)	Diagnosis condition	Engine running.
		Signal (terminal)	(-)
		Threshold	At least 180 misfires on cylinder number 4 were detected during 1000 crankshaft revs The angular acceleration of the crankshaft after cylinder number 4 injection is below minimum threshold that is dynamically calculated from current injection quantity and engine speed
		Diagnosis delay time	Diagnostic runs continuously when the engine is running