VAFC and O2 sensors
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Joined: Mar 2006
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From: Hamilton, OH, USA
VAFC and O2 sensors
O2 sensors control air/fuel ratio. This is why you would get bad gas mileage when an O2 sensor is bad, right?
VAFC controls air/fuel ratio, right? Does VAFC replace the need for O2 sensors? Does it work together with the O2 sensor?
My MIL has been on for a few days with the "O2 sensor slow response" code. I haven't noticed any changes in performance, such as gas mileage. I was wondering how important it is to get this fixed.
VAFC controls air/fuel ratio, right? Does VAFC replace the need for O2 sensors? Does it work together with the O2 sensor?
My MIL has been on for a few days with the "O2 sensor slow response" code. I haven't noticed any changes in performance, such as gas mileage. I was wondering how important it is to get this fixed.
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Joined: Dec 2015
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Re: VAFC and O2 sensors (mrmanuke)
A very old thread, yet there is an IMA sensor on the passenger side down the dashboard.
It has three wires; yellow (positive, supplied and standby), brown in the middle (positive, input for ECU), and green/wht (ground).
Connect the Avometer probe: black probe to the green/wht, and red probe to the brown wire.
Adjust the minus screw, find 2.49 volt to get AFR about 14.7
It has three wires; yellow (positive, supplied and standby), brown in the middle (positive, input for ECU), and green/wht (ground).
Connect the Avometer probe: black probe to the green/wht, and red probe to the brown wire.
Adjust the minus screw, find 2.49 volt to get AFR about 14.7
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