DTC Detection Logic

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0171	FUEL SYS-LEAN-B1 (System too lean bank 1)	Diagnosis condition	--
		Signal (terminal)	--
		Threshold	Fuel injection system does not operate properly. The amount of mixture ratio compensation is too large. (The mixture ratio is too lean.)
		Diagnosis delay time	--
P0174	FUEL SYS-LEAN-B2 (System too lean bank 2)	Diagnosis condition	--
		Signal (terminal)	--
		Threshold	Fuel injection system does not operate properly. The amount of mixture ratio compensation is too large. (The mixture ratio is too lean.)
		Diagnosis delay time	--