[gsracer]

there is a little knob on the ack of the ecu, you spin it clock wise until it stops then put the key in the on position (car off) and wait 2 seconds then spin the knob back counter clockwise and there is a little light in the ecu that will start blinking the you count the blinks. slow blinks are 10s (10 - 20 - 30- etc) fast blinks are 1s , so example slow - slow - slow - fast fast is 32. etc