I'm having some problems with the throttle body on my 1.6 stilo. Basically the intake valve does not open when accelerating. I've checked and cleaned all the contacts on N75 and M10B connectors. I've checked the 5V supply between pins 5 and 1 on N75 and also checked that the feedback from throttle body is working ok with an ELM327 interface when manually opening intake valve.
Between pins 3 and 4 on throttle body, which are the input pins for the motor, i've measured the resistance and i get 0 (also with N75 connector unplugged). I guess this must be the problem since any voltage applied on these pins to get the motor to open the valve will not do anything.
Does anyone know what could be causing this ? Could the motor be dead or just the electrical tracks shorted ? I've opened the throttle body to have a look at the electrical tracks but could not get to them since they are enclosed in a plastic cover.
Between pins 3 and 4 on throttle body, which are the input pins for the motor, i've measured the resistance and i get 0 (also with N75 connector unplugged). I guess this must be the problem since any voltage applied on these pins to get the motor to open the valve will not do anything.
Does anyone know what could be causing this ? Could the motor be dead or just the electrical tracks shorted ? I've opened the throttle body to have a look at the electrical tracks but could not get to them since they are enclosed in a plastic cover.