Idle Control Valve Frequency?

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Idle Control Valve Frequency?

Beitragvon paullanzarotti » So 14. Aug 2016, 23:03

Hello everyone,

I have a Mexican Beetle 1600i with Megasquirt ECU fitted and I am using the Idle Control Valve VDO 408-202-013.

Does anyone know the best frequency to set in Megasquirt to control this valve?

Thanks
Paul
paullanzarotti
 
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Re: Idle Control Valve Frequency?

Beitragvon Red1600i » Mo 15. Aug 2016, 10:40

Yes.

It is 300Hz.

I use a Trijekt ECU and measured it on a Digifant 1600i for my modification.
Red1600i
 
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Re: Idle Control Valve Frequency?

Beitragvon paullanzarotti » Mo 15. Aug 2016, 10:46

Ah - thank you!

I have been running it at 124 Hz and I am having issues getting the idle under control.

Thanks for your help!
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Re: Idle Control Valve Frequency?

Beitragvon Red1600i » Di 16. Aug 2016, 07:50

100Hz or 300Hz... it makes not that difference...

... but a 1N4007 Diode antiparallel to the idle Regulator plug makes a huge difference.

The Digifant ecu has this Diode internal on the board. Trijekt and MS do not have this Diode.

You know in Detail HOW the idle Regulator works?

0% = open for emergency driving without control or open

30% = closed

30-100% = regulation
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Re: Idle Control Valve Frequency?

Beitragvon paullanzarotti » Di 16. Aug 2016, 08:58

Thank you Red.

Where can I buy this Diode and where/how do I fit it?
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Re: Idle Control Valve Frequency?

Beitragvon Red1600i » Di 16. Aug 2016, 10:28

Where? EVERY electronic shop on this planet can supply this Standard Diode.

http://www.ebay.de/sch/i.html?_odkw=bmw ... 7&_sacat=0

Put it into the plug, you know "antiparallel"?
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Re: Idle Control Valve Frequency?

Beitragvon paullanzarotti » Di 16. Aug 2016, 11:35

I don't understand what "antiparalell" means but I will try to figure it out.

Thanks again.
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Re: Idle Control Valve Frequency?

Beitragvon paullanzarotti » Di 16. Aug 2016, 18:08

I spoke to the guy who assembled my ECU and apparently I already have this diode installed however the idle valve is still inconstant.
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Re: Idle Control Valve Frequency?

Beitragvon Red1600i » Di 16. Aug 2016, 19:09

... and this is the reason why i dont use it.

I use a BMW E28 eta valve. It works different, it needs power to close the system, quite the opposite.

Big Advantage when using cams over 300 degrees.
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Re: Idle Control Valve Frequency?

Beitragvon paullanzarotti » Di 16. Aug 2016, 20:24

Does that fit into the rubber ring/ICU holder that comes with the Mexican TB?
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