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Mattchu60 · 11-26-2017, 08:16 AM

you absolutely need the O2 sensor. The ECM reads the 02 Sensor and calculates the proper fuel to inject in closed loop mode. Without it the ECM can not make adjustments to the fuel injection rate.

11-26-2017, 08:16 AM	#2
Mattchu60 Registered User Join Date: Jan 2014 Location: Swaledale, IA Posts: 484	Re: oxygen sensor yes OR no ? you absolutely need the O2 sensor. The ECM reads the 02 Sensor and calculates the proper fuel to inject in closed loop mode. Without it the ECM can not make adjustments to the fuel injection rate.