After trying alot of different things, I finally went back to the VR setup that Gil laid out in Joel's post. I now have a tach signal that is stable, however only up to @ 1300rpm, at which point the rpm's drop to 0. I am happy just to be getting a tach signal that looks accurate. Also, the issues with trying to burn settings to the ecu appears to be solved. I was able to input the settings for the decoder, and all of them burnt fine. I think my map sensor is off a little bit, as I don't think the reading is correct. Just to repeat, I don't have the ms controlling anything yet, just reading values. Also, to answer the above question, I grounded everything to the point where the negative battery terminal is grounded. Anybody have any idea's about the rpm issue?
