MembersPage/NanassyPeter/AirFeed (2006-02-26 02:07:37)

Now i will have a little time for upgrade the car.

I want to use a stock Audi Bosch Idle air valve,2 pin,cigerette style.

How to wire it?

And how to configure it in megatune?

idle air solenoid - wired

I "manually" opened it with 12V, it cliks, so it's functional! I also measured its impedance: 4.1 ohm.

Pin1 to Ignition Switched +12V

Pin2 to EC36-pin6

I tried to set to PWM as discribed, and i choose INJFET #7.

Configuring for Injector Driver #6 channel. See GenBoard/Manual/DigitalOut and GenBoard/Manual/DigitalOut/Table

I can measure 12V between Cylinder Head and "Pin1".

Progress

Ok , i set that h0 so it works now,but only in on/off IAC valve mode,it really pushes the engine from 900>>>to 1500 RPM.

PWM mode

I also tried different PWM freqvencies from 10-255,no luck.

Note,that i have taken special care of engine variables,set everethigh (temps,RPMs i mean) insane high,but with PWM its not working.ANY ideas?

My own answer

The Reference table was set to 1 (all CLTs) so the IAC valve was not able to produce me some RPM increase.

Now this rpoblem is solved,but i need some finetuning hints,and basically i want to understand how this feature works.

I want that with cold engine it starts like a champ,so i set the reference table

-40c to 90%

77c to 85%

i also want that the engine RPM below 40C set to 1200RPM,so

"Idle cold RPM" is 1200

Max temp. for cold idle speed is 40C

With warm engine 920RPM will do the job nicely

"Idle RPM warm engine" 920RPM

Min temp for warm RPM is 70C

What is

idle afterstart? now set to duration 15s

added value 150RPM

IAC actuator speed? now set to 50

max steps to extend? now set to 255

What i notoced is that tough the warm engine RPM was set to 920 and the engine CLT was above 70C ,and TPS was below 3% the engine current RPM was 1050,BUT THE IAC STILL SHOWD 6-8%DC!!!!

Which setiings can tell to the IAC that in situations like this he can close and override the reference position tables 10%??(because of the still opened throttle valve)