the f20b's do have knock sensor. i figured my wiring was fine because both the other ecu's ran just fine. besides the obd2 h22 ecu's so i didn't knwo if the pinouts were off. i wired that crank sensor into the distributor so i have fire. the only thing i'm not getting is injector puls. it kicks the fuel pump on and everything. like i said before i can ground them out manualy and they will fire. but if it is in a safe mode i could see where it would not fire but my thing is where would i start. there are no trouble codes.