I swapped a b20z into my SI and rewired an OBD1 dizzy to make it work. I have fuel and fire, it will start and run for 30 seconds or so then putters out. Idles irradicly, tack goes CRAZY. Timing is dead on. I am throwing code 4 (crank angle sensor), i have switched ECU's just to make sure , i also switched out my crank angle sensor any ideas why my car is not running?