Youngy Posted July 26, 2016 Share Posted July 26, 2016 I'm fitting a air fuel ratio gauge just to see if my car is lean or rich but do I run a wire straight from the lamba sensor or from the ecu if it is the ecu what colour is the wire and if it helps my ecu is a 5s thanks Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted July 26, 2016 Share Posted July 26, 2016 Afaik Most afr gauges normally run off their own wideband o2 sensor that is fitted into the exhaust or headers . If it's not broke .....upgrade it 😊 Quote Link to comment Share on other sites More sharing options...
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