Hi i got a erst s2 with a efi conversion using frst ofac ecu and ive been following this diagram taken from this site



i took the ignition live from a yellow wire inside the car where the radio plugs in.

So then i started the car and all was fine until i turned the key to the off position and pulled the key out and it didnt turn off and i got scared . I had to stall the car to turn it off. what did i do wrong?