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Re: UK Ford Escort - HEGO/Oxygen Sensor not switching 1,200-4,000rpm!
Posted to Technical Discussion Forum on 2/18/2001 4 Replies

Hi Edward, Interesting post re O2 sensor waveform. I have a few comment to make re the above.

(1)If air is entering between the exhaust valve and the oxygen sensor this will signal to GO RICH

(2)If the voltage remains at 0.2V the quantity of fuel delivered... Login to read more.

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