Okay I have a d15b2. I'm having electrical issues. The car when it starts reads a 12 volt reference into the ecu then 5 volts at the tps, the iat sensor and eagr sensor like it should ,after about a couple seconds the voltage raises on all of those sensors in turn shutting off the car. Now I have checked some of my grounds throughout the car tried replacing the ecu with a known good one and still does the same thing. I'm in the process of checking my dizzy right now. Not sure what to check and where to check it. I'm using a pm6 ecu. its also a 1990 civic dx with a dpfi to mpfi swap. Someone plz help me.. I've heard to check the thermostat housing ground by jumping wires in the ecu but not sure which ones to jump. I'm soooo stumped.