using the stepper iac to control a cooling fan
Posted: Thu Apr 08, 2010 6:16 pm
Hello,
I am running a Volvo 740 using an Ms-II v3.57 board from diy autotune.
I had to put the project on hold and I am picking it back up again. Currently, my idle control is wired for a PWM using the Bosch valve. I have mounted an electric cooling fan and would like to use one of the stepper IAC outputs to control a fan relay. I can't use the f-idle circuit to drive the fan relay. I have read the MS-II spare port config document but I am still a little confused. Is there anyone that can explain how to wire this and what i need to do to use this. Any help appreciated.
Juan
I am running a Volvo 740 using an Ms-II v3.57 board from diy autotune.
I had to put the project on hold and I am picking it back up again. Currently, my idle control is wired for a PWM using the Bosch valve. I have mounted an electric cooling fan and would like to use one of the stepper IAC outputs to control a fan relay. I can't use the f-idle circuit to drive the fan relay. I have read the MS-II spare port config document but I am still a little confused. Is there anyone that can explain how to wire this and what i need to do to use this. Any help appreciated.
Juan