Hi guys
Can anyone help me, I have a 944s on a E plate, and the idle speed will not adjust down. I have checked all the air and breather pipes, changed the inlet manifold gasket and the o'rings on the 4 injectors and it still is running at 1400RPM, has anyone had this problem or can offer me any options to correct this problem please.
Many thanks
Lee

 

I'd check the idle stabilizer valve and see if its stuck open. Its an electrically switched solenoid, so if you don't hear it clicking, its not working. Out side of that, you should also check your throttle position sensor, and again, if its not clicking, its not set properly.

Regards,