EPC light on, Throttle Position Sensor code - Ultracharged B8 S4

[FLN2LO]

Hey Guys - I was just sitting at idle this am and all the sudden I felt the car start to feel like it was misfiring.

the EPC light came on and when I started driving it felt like the car was in some kind of limp mode (maybe 10% power available).

I pulled out the VAGCOM and got this.

6529 - Throttle Position Sensor (G69)
P0121 00 [172] - Implausible Signal
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 173372 km
Date: 2021.01.30
Time: 11:36:59

Engine RPM: 585.00 /min
Normed load value: 7.1 %
Vehicle speed: 0 km/h
Coolant temperature: 85 °C
Intake air temperature: 25 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 14.218 V
Unlearning counter according OBD: 40
Engine speed: actual: 1248 /min
MAF_ENVD: 245.11764 mg/stroke
Coolant temperature (unfiltered): 84.8 °C
Engine: operating status: PL
Engine load: 20.312500 %
STATE_LS_ENVD[1]: 1


I reset the codes and the car was fine for about 20 mins. Then the exact same thing happened again. Any idea what to start looking at in the troubleshooting process?

APR Ultra, 2012 B8 S4 DSG.

Thanks!

[JACKAL]

Have you done a throttle body adaptation? I’m not sure if that would have any impact but it’s simple enough. Otherwise have you shared with APR? I assume you’re running all their hardware and software?

[djn876]

Check the pins in the adapter harness and make sure that they are all properly seated and the connector is good.

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