Matt Holmes Posted May 16, 2010 Report Share Posted May 16, 2010 What type of o2 sensor should I use to autotune my ECU. Also, I have the handheld controller and just need to know how to wire the o2 up. I have a five wire Bosch LSU 4.2 I use with my LM-1 but the manual shows a schematic for a three wire o2. (Two for the heater and one input to the white harness wire). Please explain. Quote Link to comment Share on other sites More sharing options...
Simon Posted May 16, 2010 Report Share Posted May 16, 2010 The early G1 ecus only supported narrow band. And if its a V5 Lem it will only use the O2 sensor for dithering around 14.1 afr. You will need to use the simulated narrowband output from the LC1 or get a 1-3 wire narrow band sensor. It not a wise idea to use a narrow band for tuning these days as the wideband sensors are so much better. Quote Link to comment Share on other sites More sharing options...
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