P0234 — Turbocharger / supercharger overboost

Code P0234 is a standard OBD-II diagnostic trouble code: Turbocharger / supercharger overboost.

In our record, P0234 is reported most often on Ford and Chevrolet vehicles , against powertrain and engine failure patterns , across 2013–2022 model years. Ford alone accounts for 60% of them.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0234 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0234 5 patterns

2022 Chevrolet Malibu

engine — Turbocharger failure and boost-control loss

2021 Chevrolet Equinox

powertrain — Turbo overboost causing limp mode in cold weather

2020 Ford Escape

powertrain — Turbocharger failure — repeated cracking and engine damage

2013 Ford Escape

electrical — Stalling and power loss while driving

2013 Ford Escape

powertrain — Transmission Failure / Loss of Power

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →