Quote:
Originally Posted by low c1500
Question?
I have a few O2 sensor simulators, they are a little inclosed ciruit that has a +12 and ground wire, and the output wire toggles between 0.3v and 0.65v (every second or so), would this work to fool the NAV as a speed input?
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I am not sure but I don't think so. I believe the pulses have to span a wider voltage gap with the lowest peak going to 0 volts. During my testing it only worked when I got it to 0 volts and even negative voltage worked if I kept the pulses short, however a few people had some issues with capacitors burning out so we modified the circuit design again.
Also, the pulse duration should be slower, like once every 4-6 seconds, to minimize the speed equivalent in the NAV unit. If the pulses are too wide or too fast then the NAV will calculate a faster speed and lockout the functions. If you decide to try it then by all means let us know how it works. Just be careful not to fry your NAV unit or ECU...
