IAC valve on MS3X question.

General support questions and announcements for MS3. See also MS3 manuals.

Moderators: jsmcortina, muythaibxr

IAC valve on MS3X question.

Postby okubricko » Tue Nov 14, 2017 7:42 am

I have a quick question related to driving the Idle Control Valve. I have a 2 wire bosch valve, it's connected to the MS3X on pin 9 and I have added a diode in the wiring harness as directed in the manual. I get no response from the valve when the MS3X is powered up or when I try to run it in test mode. I was looking back through the manual to see if I missed something and noticed that a jumper, (S12C to JS), is "required to power the stepper driver and the MS3X card". This is in section 13.4 Jumper Wires.

Is this jumper required to power my 2-Wire PWM IAC valve? Thanks.
okubricko
Helpful MS/Extra'er
 
Posts: 50
Joined: Thu Nov 17, 2016 12:09 pm

Re: IAC valve on MS3X question.

Postby Dennis930 » Tue Nov 14, 2017 8:22 am

Yes, you need the jumper installed.
Porsche 930 3.0 Slantnose
MS3/MS3X Sequential Injection & Spark, MS Knock, Dual plug, LS2 coils, Siemens 55 lb/hr HiZ injectors, ALM-ADV Wide Band,
Carrera Intake, Extrude honed, Ford 70mm Throttlebody, GTX3071R Turbo
Dennis930
Experienced MS/Extra'er
 
Posts: 174
Joined: Sun Feb 12, 2006 6:26 pm
Location: Va. Beach, VA

Re: IAC valve on MS3X question.

Postby okubricko » Tue Nov 14, 2017 1:34 pm

Thanks much!!
okubricko
Helpful MS/Extra'er
 
Posts: 50
Joined: Thu Nov 17, 2016 12:09 pm


Return to MS3 General Support

Who is online

Users browsing this forum: Google [Bot] and 3 guests