Originally Posted by fgfournet
I'm trying to build an O2 sensor sim. setup. I was wonder if you know what your friend used to simulate the heater circuit. I used two 10 Ohm, 10 Watt resistors. Check engine light still returns 70 miles later. Any info will help.
Ill check w/him. I'm definatley no EE, but I think he used a 555 timer? He said something about it sending a modified sine wave back to the ecu. I'm not sure if this has anything to do w/the heater signal, sounds more like the driver to me.
If mine continues functioning properly will put them up on the site and start selling them. Prices should be very reasonable.
Stay tuned and Ill get back to you w/more specific details.