Alltrack is38 throwing codes

[snowj720]

Codes: P0413 secondary air injection system switching valve A circuit open

P0045 turbo charger boost control solenoid circuit/open

P00AF00 Turbo boost control A module performance static



17 Alltrack with HPA is38+ (unitronic ecu/tcu). is38 was professionally installed 5 months ago.

I've done a little research to see what might cause these but hoping someone has dealt with this exact combo.

Wagen drove fine on the way to work, no boost after.

After pulling codes and wiggling things around a bit there were no more codes and had full boost.

BUT, I have a feeling the issue will come back.

I assume one of these codes caused other issues then throwing the codes.

Where should I start?

 

[tigeo]

Waste gate issues.

The SAI is not an issue but likely the wiring harness/connector is loose.

 

[snowj720]

01 Engine

System description: 1.8l R4 TFSI
Software number: 8V0906264M
Software version: 0001
Hardware number: 06K907425B
Hardware version: H13
ODX name: EV_ECM18TFS0208V0906264M
ODX version: 001003
Long coding: 311D00122426002F0000

Trouble codes:
P004500 - Turbocharger/Supercharger Boost Control "A" Circuit/Open
Intermittent
Date: 2023-09-17 12:57:52
Mileage: 133059 km
Priority: 2
Malfunction frequency counter: 2
Unlearning counter: 255
Engine speed: 0.00 1/min
Normed load value: 0.0 %
Vehicle speed: 255 km/h
Coolant temperature: 98 °C
Intake air temperature: 54 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 12.675 V
Dynamic environmental data: 2096283EAA003EA857A03EA600003EA700383EA900003EAB5860180107
P00AF00 - Turbocharger/Supercharger Boost Control "A" Module Performance
static
Date: 2023-09-14 17:09:57
Mileage: 132950 km
Priority: 2
Malfunction frequency counter: 5
Unlearning counter: 255
Engine speed: 1872.75 1/min
Normed load value: 20.0 %
Vehicle speed: 73 km/h
Coolant temperature: 84 °C
Intake air temperature: 23 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 13.984 V
Dynamic environmental data: 2096283EAA003EA834603EA61CE93EA70DF83EA9270F3EAB57C0180106

 

[snowj720]

Waste gate issues.

The SAI is not an issue but likely the wiring harness/connector is loose.

Does it seem like the voltage might be off? That sort of WG issue? Everything was supposed to be set from HPA and has worked great until now. Maybe the lock nut came loose?

 

[snowj720]

Last I drove the wagen I lost boost a few miles in. Got to my destination, turned her off. After restart I had boost all the way home. I stayed on boost (like over 2500 rpm) the whole way. Wife drove it today and instantly no boost with EPC/CEL. She doesn't drive in "manual" mode, I do.

 

[tigeo]

Does it seem like the voltage might be off? That sort of WG issue? Everything was supposed to be set from HPA and has worked great until now. Maybe the lock nut came loose?

Need to see your WG V...