CR FR 2.0tdi P0403 + p2563 Limp Mode and oil pressure light

Apr 20, 2025
2
0
Seat Leon CR FR 2.0tdi Supercopa
(Cega Engine code)

P0403 Exhaust Gas Recirculation
Circuit Malfunction

P2563 Turbocharger Boost Control
Position Sensor 'A' Circuit
Range/Performance (sporadic code)

Car also has a lot of blow-by causing the oil filler cap to wobble around when open and the dipstick to vibrate when closed.

Does anyone know how I can get this out of limp mode and get the oil pressure light off. If I can fix it I will be looking at an egr and dpf delete along with a bunch of modifications if not I’ll be breaking it for parts.

FYI it has 200k miles but has tons of service papers so I know it’s been looked after.
 

R3k1355

Active Member
Oct 30, 2014
1,866
272
Yorkshire
If it's got that much blow by I wouldn't bother. I would look into that first, are the piston rings or bores ****** or do you have some PCV or crankcase ventilation issues?
 
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