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3 wire Idle air valve question


Gctech
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Hello, 

The help section suggest aux 1 and aux 2 to setup a 3 wire IAC ,im already using all aux 1 and 2 for VVT functions and only have 8-10 free in which I assigned Aux 8 to ISC solenoid yet i can control Idle at all, which other way can I set up a 3 wire rotational IAC

thanks

Base map mk4.pclr

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3 things I notice soon as I open the file:

Solenoid frequency is set to 12hz

Max clamp is set to 12%

And your base position is set to 0.

 

set frequency to around 200

raise max clamp to 90

put some kind of reasonable values in the base position table.

 

Also, please read the ISC setup in the help file.  The help file in the software is fantastic and will help 100% of the time.

 

 

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3 things I notice soon as I open the file:

Solenoid frequency is set to 12hz

Max clamp is set to 12%

And your base position is set to 0.

 

set frequency to around 200

raise max clamp to 90

put some kind of reasonable values in the base position table.

 

Also, please read the ISC setup in the help file.  The help file in the software is fantastic and will help 100% of the time.

 

 

Fixed Thanks Bud!

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  • 2 weeks later...

Gctech, have you managed to run 3-wire ICV on AUX 8-10 ?

A 3 wire valve can only be run from aux 1 & 2.  There is a small electronic circuit you can possibly use to control a 3 wire valve from a single aux which would allow you to use Aux 8.  Attached below.

The other option is to change to a 2 wire valve.

3 Wire ISC with 1 Aux.pdf

Edited by Adamw
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Adam,

That is for the older Subaru 3 wires that had 2 signals one for open and one for close.

The 3 wire that Gctech is running is more like the Subaru v7-9 that has a power, ground, and signal from the ecu. More like the standard 2 wire pwm solenoids.

As for what 3 wire Laimis is referring to, I don't know.  Just assumed the same solenoid that Gctech was running.

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