Friday, October 1, 2010

WS3B-3

Oxygen sensor against Injector signal (petrol)


Volt division oxygen sensor : 0.5 Volts

Volt division Injector : 20 Volts

Time division : 5 mili seconds


When the O2 sensor voltage increase the ECU would see this as a rich mixture and to counter this decrease the dwell time (opening time) of injectors so less fuel is being injected( injectors staying open) and the mixture would become leaner

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