any one used vr6 obd2 throttle body?

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asumsatlil
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any one used vr6 obd2 throttle body?

Post by asumsatlil »

any one used a vr6 obd2 throttle body with drive by cable, does the tps and pwm idle valve work ok? i beleive it will work, just asking for if anyone has experience in it, before i go ahead and get to work.

heres a previous post i read of people talking about it but no one verifies if it worked ok: http://www.msextra.com/forums/viewtopic ... 94&t=21765

i also have this pin out for the connector
connector_tps.png
connector_tps.png (13.95 KiB) Viewed 1257 times
rickb794
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Re: any one used vr6 obd2 throttle body?

Post by rickb794 »

Looks like 2 wire idle control. Does it use PWM?
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prof315
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Re: any one used vr6 obd2 throttle body?

Post by prof315 »

No its a bidirectional DC motor and needs a half bridge circuit to control properly. While you can gain very rough control over it with PWM the results are less than satisfying.
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panel
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Re: any one used vr6 obd2 throttle body?

Post by panel »

Not sure if this guy runs that TB but he has run the OEM ECU from VW for the DBW throttle body and then uses MS for the rest. He might be the one to ask ?

https://www.youtube.com/user/drewhastheinternet
'65 VW Bus with a Subaru EJ20 Turbo conversion , Air to water I/C , LS coils , 14Point7 Spartan 2 & Solid Air Fuel Ratio 52mm gauge.
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prof315
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Re: any one used vr6 obd2 throttle body?

Post by prof315 »

panel wrote:Not sure if this guy runs that TB but he has run the OEM ECU from VW for the DBW throttle body and then uses MS for the rest. He might be the one to ask ?

https://www.youtube.com/user/drewhastheinternet
It's NOT a DBW throttle body it simply has an idle control motor attached to the throttle blade. And trust me I have been doing this for YEARS. This is what you need to build to proper control that style throttle with MS using PWM:
Attachments
Vag%20Throttle%20controller.PNG
Vag%20Throttle%20controller.PNG (77.26 KiB) Viewed 1200 times
Linfert Performance/321 Motorsports
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panel
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Re: any one used vr6 obd2 throttle body?

Post by panel »

So these are not DBW?

https://youtu.be/8fCR7CZQZxc
'65 VW Bus with a Subaru EJ20 Turbo conversion , Air to water I/C , LS coils , 14Point7 Spartan 2 & Solid Air Fuel Ratio 52mm gauge.
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Paul_VR6
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Re: any one used vr6 obd2 throttle body?

Post by Paul_VR6 »

The 96-99 tb is non dbw but used a servo to control the idle with small throttle plate movements.

I am thinking the stepper output could be made to work with some code changes.
-Paul
1992 Corrado SLC 3.6 VR6 11.38@120 - MS3 Pro Ultimate - Microsquirt I/O - Can EGT - Racepak IQ3s
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ikan181
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Re: any one used vr6 obd2 throttle body?

Post by ikan181 »

Anyone able to work the obd2 tb with ms3x
Paul_VR6
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Re: any one used vr6 obd2 throttle body?

Post by Paul_VR6 »

You can get some function by adding a mechanical throttle stop to get base idle 900rpm warm then use pwm on the ie motor. There will be no position feedback loop but it is better than nothing.
-Paul
1992 Corrado SLC 3.6 VR6 11.38@120 - MS3 Pro Ultimate - Microsquirt I/O - Can EGT - Racepak IQ3s
kptuned.com - Megasquirting the World! Megasquirt Sales, Service, Tuning and More!
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