Wastegate Actuator Adjustment

[katanamst279]

What is the voltage for closed position?

The first picture is with the ignition on but engine off.
Second one is with the engine running.

https://imgur.com/a/PxNsckw

https://imgur.com/a/H8NAiIq

 

[MyGolfMk7]

I tried adjusting the rod but the voltage just stays the same

After you adjusted the actuator rod did you run the adaptation again?

 

[MadMen]

I think your setting is fine. 3.57 at the lower stop is all you can accurately measure with the is20 wg. You more than likely have a physical problem with the wastegate assembly - which probably means time for a new turbo.

I would also try what Diggs asked, and read the voltage while holding it closed.

 

[katanamst279]

After you adjusted the actuator rod did you run the adaptation again?

Yes but I get the error that says "Aborted for safety reasons". The voltage never changed. It stayed at 4.65V-4.70V

 

[MyGolfMk7]

Yes but I get the error that says "Aborted for safety reasons". The voltage never changed. It stayed at 4.65V-4.70V

When you tried tightening the actuator what did you do specifically? Which direction did you turn the rod and for how many turns?

 

[katanamst279]

When you tried tightening the actuator what did you do specifically? Which direction did you turn the rod and for how many turns?

I rotated it all the way one way, then all the way the other way but the voltage never changed

 

[matrix1867]

Does anyone know why the voltage wouldn't change? I am experiencing this same problem on an IS12 actuator I'm using on an IS38 turbo. If I spin the actuator rod clockwise facing the wastegate flapper my voltage remains 4.5V and doesn't change. If I spin counter clockwise same thing, the voltage doesn't change. I can completely remove the rod from the wastegate arm and spin it freely in both directions and it does not change.

Should I be able to push or pull the actuator rod at all? It is not stuck from what I can tell but it barely moves in and out, maybe only a few mm. If I try to run position test of end stops of charge pressure actuator on my OBD11, it says exited due to safety reasons. I'm assuming because the voltage is too high. This is with the car off, ignition on. Also when I drive I hear the wastegate open and let pressure off, but it seems to open too easily and for too long.

 

[Diggs24]

Voltage only changes when the arm moves in and out. Was the actuator functioning well prior to going on the IS38?

 

[matrix1867]

Yes it was working perfectly fine. Actually, one day it was working just fine... then it was cold over night, when I woke up to get ready to leave for work I had to scrap frost off my windshield, about 34 degrees, and as I was driving to work I noticed I had a symbol on my dash that was telling me cruise control was disabled, and I started to notice the boost problems where the car can no longer hold boost.

I thought maybe it was somehow related to change in temperature. Working fine one evening, then acting up the next morning. It's been crazy with the weather lately, like 32 degrees in the morning then 70 degrees during the afternoon.

 

[Diggs24]

No codes?

 

[matrix1867]

I have some attachments on that post, I dunno if you can see.

P256300 and P226300

Now this is after I had been messing with the actuator, I want to say it was throwing the P256300 from the beginning

I'm going to jack the car back up and work on it again soon. The waste gate door itself doesn't seem to be siezed up from what I could tell yesterday. The arm moved and spun freely when I unscrewed the rod

 

[Diggs24]

I meant when it was acting up previously.

 

[matrix1867]

The day I drove it when it was acting up I want to say it showed the P256300 code, I didn't take any screenshot of it before I tried to alter the actuator voltage. I do know it was reading 4.5V which is why I initially thought I needed to lower voltage and run the adaptation.

I do see another in history as P00AF00

 

[jimlloyd40]

The day I drove it when it was acting up I want to say it showed the P256300 code, I didn't take any screenshot of it before I tried to alter the actuator voltage. I do know it was reading 4.5V which is why I initially thought I needed to lower voltage and run the adaptation.

I do see another in history as P00AF00

https://www.troublecodes.net/pcodes/p00af/

 

[matrix1867]

I feel like I would need to screw the rod in really far to close the waste gate door. Is this the PITA I am reading about? Eventually when it's threaded in a ways it gets incredibly hard to turn the rod