Help with Tech edge wideband syncing to s300.

josh green · Post by **josh green** » Sat Mar 27, 2010 6:28 am

I have an older Tech-edge wideband that came in my car and I am trying to sync it with s300 for datalogging. The wiring is ran properly to my knowledge, I am using the O2 pin on the ecu for input. The wideband that I have only has an RS232 jack for output and it says on their site that pin 7 is the one needed for output to log. Well I have ran the wire and I have turned everything on and set to the suggested settings in hondata and have been messing with the voltage offset and nothing is working. I have heard that I may need to run a ground wire from the output on the wideband but am unsure of which pin. I have searched the tech edge site and its kind of confusing to me. I believe its pins 5&6 are grounds but I am unsure of which goes with the O2 if it even does at all? You help is greatly appreciated!

Post by **Spunkster** » Mon Mar 29, 2010 9:43 am

It sounds like you will need to contact the manufacturer of that wideband and find outif it has a linear output (0-5v).

http://www.hondata.com/techplxwiring.html