Vargas Turbo Build - 2017 GTI SE

[CrossFit67]

Alright, here I am 1 month and $1500 later. Just got the car back from the shop. Ran great for a mile and then threw the EPC code on the way home. It's the wastegate actuator again!

They are a good shop, but work on BMWs mostly. Tony walked them through the process of setting the actuator yesterday. They installed the turbo with an IS38 actuator Tony put on it and at least got it going. It's now measuring 3.7v. Looks like it's close.

I'm going to let it cool down and see if I can't just set the thing myself. I'm hesitant to take it back to the shop where my car was sitting for 3+ weeks.

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[uberpolka]

If the voltage is set correctly, should just be a matter of running the adaptation through OBD11.

Shouldn't take more than a minute if so.

 

[CrossFit67]

I don't think the voltage is set correctly. I think that 3.745v is high. I'm going to drop it to 3.6v and see if that does it.

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[Sumfuncomet]

Keep this thread alive please. I am interested to see what happened. You are a patient man, see it through!

 

[Diggs24]

Like I keep saying, I don't think "this voltage" be it 3.4, 3.5, 3.6 is right for all cars. Mine runs great on 3.85v. So to say 3.7 is high I don't agree.

983FFF8D-7D3F-48CF-9842-FCECB99AB0FC by Diggs24, on Flickr

 

[CrossFit67]

Like I keep saying, I don't think "this voltage" be it 3.4, 3.5, 3.6 is right for all cars. Mine runs great on 3.85v. So to say 3.7 is high I don't agree.

983FFF8D-7D3F-48CF-9842-FCECB99AB0FC by Diggs24, on Flickr

You’re right that it’s not necessarily high or low. Must be close since it ran for a while I’m thinking...


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[CrossFit67]

Btw - This is what it looks like currently.

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[MadMen]

Btw - This is what it looks like currently.

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Pull it open from there, and see if it will open freely.

 

[Diggs24]

Is the rod touching anything? It needs to move freely. Also, looks like the arm is off. Hope that weld isn't failing too.

 

[H22hatch]

I agree with Diggs, don’t get too hung up on the actual voltage once everything is working correctly. UM set my car to a much higher voltage and the car runs perfectly fine. Car went in set exactly at 3.5 and they had the shop tuning it adjust it that high up.

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[Diggs24]

 

[Diggs24]

 

[Diggs24]

Please confirm I am seeing this wrong.

 

[CrossFit67]

I just shoved my phone back there to see how many threads were showing on the rod. If 10 is the correct number then it looks good.

The replacement turbo went straight from Vargas to my shop, so I did not get to take good shots of it like I did the original. Hopefully, those are not defects, but I cannot confirm. I guess we’ll see...

Going to try setting the actuator again tomorrow morning.


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[MadMen]

I just shoved my phone back there to see how many threads were showing on the rod. If 10 is the correct number then it looks good.

The replacement turbo went straight from Vargas to my shop, so I did not get to take good shots of it like I did the original. Hopefully, those are not defects, but I cannot confirm. I guess we’ll see...

Going to try setting the actuator again tomorrow morning.


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I would check the code first. Not all EPC codes are related to the actuator.