i recently bought apexi pen type turbo timer.. how to install this timer?? i used l2s engine but i dunno how to connet the 02 sensor and air/fuel ratio.. anyone.. plzzzz....:hmmmm:
1)when i turn on my aircon and i rev to 4000RPM ,
IF i suddenly release the acceleration, my RPM drops to 600
and i can feel some VIBRATION and again goes to normal...