butterfly circuit settings

[thecrew2999]

im trying to setup controls for the butterflies on a taurus SHO intake but i dont know if its im tired or what but im not understanding how i set it up in spare port settings..

could someone just type it out for me so i know what to set..

im using IAC1 port since it can handle .5 amps which the butterfly circuit basicly is a small solenoid for vacuum..

anyways i would like it to open the circuit at 3750 rpms stay open above and close below those are the only conditions

im hoping if someone shows me this it would help for future stuff..

everytime i tried to set it with i checked it with the multimeter and it was 1.25 volts below the value i set and 2.25 volts above the input volt on my stim is 9 volts....
it didnt act right either it didnt jump to one volt to the other it basicly was gradual...

like i said im lost on how to set this up...

im using MS2 with 2.89 software..

thanks

[Matt Cramer]

Use the spare output ports:

http://www.megamanual.com/ms2/spare.htm

Are you using the IAC circuit to drive it directly or using the transistor circuit shown there? Let me know what you've got and I'll help you straighten it out.

Also, make sure you've got JS9 jumpered to S12C or the IAC outputs won't work.

[thecrew2999]

im using the IAC to directly drive a device.

im gonna check about what i got jumpered but since i dont have a stepper IAC i didnt do anything to set up a stepper IAC probley there in lies the problem.

weird thing is the IAC2 outputs had battery voltage

[thecrew2999]

got it figured out now thanks as always matt..

one thing i found out was the ports are reversed when i pick IAC1 it controls IAC2 and vice versa

[thecrew2999]

works like a charm i am able to control the butterfly circuit without a relay or transistor