What Skoda codes (P0341, P0420, P0299, P0011, P0171, P0017) actually mean on Skoda engines — the real cause, the common misdiagnosis, and the honest UK repair cost.
These are the OBD fault codes we see most often on Skoda vehicles in the workshop, with the real cause on Skoda engines rather than the generic textbook definition, plus the honest independent-garage cost.
Skoda fault codes explained
- P0341 — Cam sensor performance on Skoda Octavia VRS / Superb — timing chain stretch on the 2.0 TSI EA888 and 2.0 TDI CR. Typical UK cost £600–£2500.
- P0420 — Catalyst efficiency below threshold on Skoda — shared VAG petrol engines suffer the same cat-degradation patterns as VW. Typical UK cost £220–£1100.
- P0299 — Turbo underboost on Skoda — VAG TSI and TDI engines share known boost-leak and VGT issues with VW. Typical UK cost £180–£1600.
- P0011 — Intake cam over-advanced on Skoda — EA888 chain tensioner and EA111 chain stretch carry across from VW. Typical UK cost £220–£2100.
- P0171 — System lean on Skoda — EA888 and EA111 TSI PCV diaphragm failures and intake manifold leaks. Typical UK cost £180–£750.
- P0017 — Crank/cam correlation Bank 1 sensor B on Skoda — EA888/EA111 chain stretch (Octavia vRS, Superb, Kodiaq). Typical UK cost £700–£2100.
- P0234 — Turbo overboost on Skoda — same EA888/EA189 N75 solenoid and wastegate story as VW. Typical UK cost £140–£850.
- P0507 — Idle speed higher than expected on Skoda — same EA888/EA211 PCV vacuum leak story as VW/Audi. Typical UK cost £140–£480.
- P2002 — DPF efficiency below threshold on Skoda — 1.6/2.0 TDI EA189 clogged DPF and failed regen on Octavia/Superb. Typical UK cost £180–£1400.
- P2463 — DPF soot accumulation on Skoda — same EA189/EA288 over-soot story as VW/Audi. Typical UK cost £140–£1600.
- P0410 — Secondary air injection malfunction on Skoda — older Octavia 1.6/1.8 petrol SAI pump seizure. Typical UK cost £140–£480.
- P0301 — Cylinder 1 misfire on Skoda — EA888 coil pack, EA189 injector copper-washer leak. Typical UK cost £85–£750.
Codes are generic across manufacturers, but the fix is not. The same code on a Skoda usually points at a different component than it would on another make, which is why a make-specific diagnosis saves money before any parts are bought.