VinhZXT Posted April 19, 2007 Share Posted April 19, 2007 Guys, I have a 4 wires O2 sensor. There are 2 wires for power and 2 wires for signals, 1 for low and the other is for hi signal. How do I hook this up to a stock 280ZXT ECU? Which signal wire do I use? THanks for any help V. Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted April 24, 2007 Share Posted April 24, 2007 4 wire 02-grey is signal,both white wires are heater circuit,black is ground-you should just step up to wide band o2 system Quote Link to comment Share on other sites More sharing options...
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