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997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.

Electrical pin outs for purge valve

 
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Old 03-19-2019, 01:47 PM
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Electrical pin outs for purge valve

Looking to see if anyone has the ECU pinouts for the vent line purge valve? I'm getting a P0444 and an indy shop says the plug routed to that seems way too tight to be the correct plug. Does anyone have access to the ECU pinouts from this purge valve to the ECU? I found several ECU diagram PDF's but they do not show the wiring for this specific part.



 
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Old 03-19-2019, 04:56 PM
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If anyone has the full ECU pin outs, I can do the leg work to find the pins.
 
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Old 03-19-2019, 05:16 PM
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Originally Posted by Kenith View Post
If anyone has the full ECU pin outs, I can do the leg work to find the pins.
Im looking for you, I havent been able to find it on any wiring diagram
 
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Old 03-19-2019, 06:25 PM
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Originally Posted by o7silverturbo View Post
Im looking for you, I havent been able to find it on any wiring diagram
much appreciated sir! Not sure how this connector might have gotten mixed up.
 
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Old 03-19-2019, 07:46 PM
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Pinouts here: https://www.6speedonline.com/forums/...g-diagram.html

what you're looking for: C3 on the ECU side ... pin 9 on the first round connector engine side ... Violet/Violet wire





 
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Old 03-19-2019, 08:02 PM
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Originally Posted by TT.BRN View Post
Pinouts here: https://www.6speedonline.com/forums/...g-diagram.html

what you're looking for: C3 on the ECU side ... pin 9 on the first round connector engine side ... Violet/Violet wire





great! Thank you! Looks like I’ll be able to pin it from the two round harness plugs in the rear of the motor!
 
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Old 03-20-2019, 06:08 AM
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The connector prob isnt mixed up or you would have two codes because something else would be plugged in the wrong spot.

Also I found that same picture but I believe that is for the gas tank vent valve. That little valve you are looking for goes to the intake manifold so it should be the purge valve
 
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Old 03-20-2019, 08:35 AM
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Originally Posted by o7silverturbo View Post
The connector prob isnt mixed up or you would have two codes because something else would be plugged in the wrong spot.

Also I found that same picture but I believe that is for the gas tank vent valve. That little valve you are looking for goes to the intake manifold so it should be the purge valve
that’s a good point, but I’m getting a p0444 even after the Indy shop replaced the purge valve and carbon canister. They mentioned the harness seems way too tight.
 
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Old 03-20-2019, 11:35 AM
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Originally Posted by Kenith View Post


that’s a good point, but I’m getting a p0444 even after the Indy shop replaced the purge valve and carbon canister. They mentioned the harness seems way too tight.
they replaced the purge valve in the engine bay? the picture that you posted?

Because I dont think on the 997 it has a tank vent valve. I believe it just has the engine purge valve
 

Last edited by o7silverturbo; 03-20-2019 at 11:46 AM.
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Old 03-20-2019, 11:59 AM
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Originally Posted by o7silverturbo View Post
they replaced the purge valve in the engine bay? the picture that you posted?

Because I dont think on the 997 it has a tank vent valve. I believe it just has the engine purge valve
the pdf I posted is of the “tree assembly” which was replaced along with the carbon canister up front. The pdf I pulled was from a 997.1 turbo.
 
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Old 03-21-2019, 11:08 AM
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Originally Posted by o7silverturbo View Post
they replaced the purge valve in the engine bay? the picture that you posted?

Because I dont think on the 997 it has a tank vent valve. I believe it just has the engine purge valve
we’ll be tackling this project this Saturday, any other ideas on the P0444 cel? The car idle hunts (sometimes, with the cel coming on right after), with similar symptoms of a vacuum leak.
 
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Old 03-21-2019, 12:11 PM
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Originally Posted by Kenith View Post


we’ll be tackling this project this Saturday, any other ideas on the P0444 cel? The car idle hunts (sometimes, with the cel coming on right after), with similar symptoms of a vacuum leak.
I checked on my car for you. Those wire match the colors going to the valve on my car so it seem the wiring diagram is right.

I would UNPLUG the valve and power it to see if it clicks. Make sure you didnt get a bad part from the dealer or part store.

Check resistance from the main plug to the sensor plug make sure you dont have a break in the wiring.

If you have access to a scanner can have a meter on there and see if the computer is even commanding the sensor on.

PM and Ill give you my cell number if you have any questions you can shoot me a text

 
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Old 03-30-2019, 09:38 PM
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I replaced the vent hose in order to correct a P0455 code..

https://rennlist.com/forums/997-turb...l#post13542347
see post #13 and #19

Worked like a champ, I bet you have some other issue. The connector just provided 12V to cause the hose to flow air or not. Mine was easy to check.
 

Last edited by saabin; 03-30-2019 at 09:41 PM.
 
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