New turbo calibration

[GavMc P11GT]

I’ve recently fitted a new turbo on the actuator it had a tag stating it would need to be calibrated using a diagnostic tool I asked if vagcom can do this and was told it can.

I’ve watch several videos but mine doesn’t appear to be able to do it.

2016 2.0 102 CXGB

Any help appreciated

 

[mmi]

need to be calibrated using a diagnostic tool I asked if vagcom can do this and was told it can.

Well, VCDS is needed for the calibration but the calibration itself is traditional wrench task.
Please check below

Post in thread 'P00AF - 'stuck' with new turbo'

14 Oct 2024

Indeed, well out of adjustment - the sensor voltage engine stopped should be about 3.7 Volt and idling at 0.75 Volt.
The same also seen in a test here -

[T6_measured] 01-Engine - Built-in tests for turbocharger

01-Engine - Basic Settings IDE00457-Test of turbocharger HOW-TO Engine running VCDS > Select > Engine > Basic Settings > IDE00457-Test of turbocharger Select "Show Measuring Data" Pick up e.g. the following data items for monitoring: IDE00021 Engine RPM IDE00347 Air mass: actual value...

www.t6forum.com

the rod whilst i'd imagine is threaded, doesn't look like it is meant to be adjusted, i.e. factory set with no lock nut present?

I think the thread below is very useful - the same for DAUA engine. The actuator needs to be removed for adjustment...

• mmi

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[GavMc P11GT]

Ah I’ll get on this tomorrow morning see how the land lies with it. It’s testing my patience now!

 

[GavMc P11GT]

Hiya @mmi what do you make of these mate?

 

[mmi]

Hiya @mmi what do you make of these mate?

Spot-on

 

[GavMc P11GT]

Spot-on

Nice one thanks for taking the time to look over them for me!

 

[GavMc P11GT]

Spend all afternoon on it cannot find the culprit and it’s driving me mad here’s a video I’ve done a YouTube short which hopefully shows what I’m working against.

Any help would be appreciated I hate to say it but I’m feeling pretty beat on this one.

 

[GavMc P11GT]

May have finally struck gold. Everyone who has listened to it has been sure the sound is coming from the intake area so a lot of my time has been spent on that however it appears my EGR could be at fault. I’ve just done an output test on the egr and when it activates the sound goes then as it deactivates the sound comes back.

Any thoughts?

 

[mmi]

While running the Basic Settings IDE00457-Test of turbocharger - please make a log of the following data

IDE00021 Engine RPM​

IDE00347 Air mass: actual value:​

IDE07738 Charge air cooler inlet: pressure sensor 1 bank 1: raw value​

IDE07744 Particle filter: air pressure sensor 1 bank 1: raw value​

IDE07757 Exhaust recirc.valve 1 bank 1: posit.feedback - Actual value​

IDE07783 Turbine actuator 1 bank 1: posit.feedback - Raw voltage​

IDE07784 Turbine actuator 1 bank 1: posit.feedback - Spec.value​

IDE07785 Turbine actuator 1 bank 1: posit.feedback - Act.value​

​

For how-to-log see below

Thread '[T6_measured] 01-Engine - Built-in tests for turbocharger'

13 Oct 2024

01-Engine - Basic Settings​

IDE00457-Test of turbocharger​

HOW-TO​

Engine running​

VCDS > Select > Engine > Basic Settings > IDE00457-Test of turbocharger​

Select "Show Measuring Data" ​

Pick up e.g. the following data items for monitoring:

IDE00021 Engine RPM​

IDE00347 Air mass: actual value​

IDE07736 Turbocharg.2 compress.outlet: press.sensor 1 bank 1: raw value (bi-turbo only)​

IDE07738 Charge air cooler inlet: pressure sensor 1 bank 1: raw value​

IDE07744 Particle filter: air pressure...​

• mmi
• t6_measured turbo vcds
• Replies: 8
• Forum: Engine, Gearbox, Exhaust, Drivetrain

• 
• 

 

[GavMc P11GT]

I’ll have something to eat then get back out to it got the tablet on charge too.

 

[GavMc P11GT]

Think this worked?

 

[GavMc P11GT]

Wow I just opened that file it could be Chinese for all I’d know

 

[mmi]

Think this worked?

Hmmm... looks like the test itself was not started at all - just normal engine idling was recorded?

 

[GavMc P11GT]

Ah that will be my doing I thought that was what you were after do I need to take it for a drive?

 

[mmi]

No need to drive - just enter into the Basic Settings, select "IDE00457-Test of turbocharger" - do not click "Go" yet.

At the bottom left select "Show measuring data"

Tick the following data items for monitoring:

IDE00021 Engine RPM​

IDE00347 Air mass: actual value:​

IDE07738 Charge air cooler inlet: pressure sensor 1 bank 1: raw value​

IDE07744 Particle filter: air pressure sensor 1 bank 1: raw value​

IDE07757 Exhaust recirc.valve 1 bank 1: posit.feedback - Actual value​

IDE07783 Turbine actuator 1 bank 1: posit.feedback - Raw voltage​

IDE07784 Turbine actuator 1 bank 1: posit.feedback - Spec.value​

IDE07785 Turbine actuator 1 bank 1: posit.feedback - Act.value​

Select "Log" > "Start" (to log the data)

Now click on "Go!" (to start the test)

PS. Of course would be nice to get the same recording when running the EGR test

 

[GavMc P11GT]

Think i managed this time buddy?

 

[mmi]

Yes, thanks.

"IDE00457-Test of turbocharger"​

The actuator -​

moves as expected

Charge pressure -​

I was expecting that pressure would peak at 1500 mbar (based on my CXEB engine data). Now it's barely half of that (250 mbar above atmospheric).
Perhaps someone with CXGB engine could kindly provide the same data package for comparison.

By the timings on the video the sound comes when turbo generates high charge pressure.

Intake air flow & exhaust flow -​

Quite fluttery - curves should be nice and smooth
EGR is closed during the test so it shouldn't affect.



Have you ruled out an air leak between turbo and intake manifold?
Can you make an air leak - to see if the sound then disappears?

I’ve just done an output test on the egr and when it activates the sound goes then as it deactivates the sound comes back.

Any chance to make a video (or just a sound recording) while running and logging the EGR test?

 

[GavMc P11GT]

I have pressure tested and smoke tested all the pipe work from the air box to turbo and turbo to inlet manifold. I’ll run an egr test and video it now.

 

[mmi]

I have pressure tested

How much pressure was applied?

 

[GavMc P11GT]

How much pressure was applied?

around 10psi