Error P0403: EGR stuck in 2.0TDI (probable)
The 2.0 TDI starts and immediately stalls. The culprit seems to be the EGR valve, which is likely stuck open, causing the engine to choke on its own exhaust gases and immediately stall. Before disassembling the EGR, I decided to take a look at the logs for the set and read valve position, as well as error code #P0403. Unfortunately, the valve's location in this TDI engine doesn't allow for a visual inspection. 📺 mr-fix: / mrfixpl
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0:00 Flashing spiral and TDI limp mode
0:15 Audi Q3 2.0TDI starts and stalls
1:10 Limp mode and lack of power
1:20 XTool D7, reading error P0403
3:30 Live Data, i.e. live data with EGR operation
5:00 EGR operation after clearing the error
5:30 graph with the set and read position
7:45 guessing the EGR open and closed position
8:10 EGR valve operation after shutting off engine
9:30 clean or replace