P0234
P0234 on Ford — Significantly reduced performance with the engine warning light on
Code P0234 reports a turbocharger boost pressure above the expected value. On the Ford Transit 2.4 TDCi the most common cause is a seized variable geometry linkage.
- System
- Fuel injection
- Component
- Turbocharger
- Fault
- The vehicle intermittently shows significantly reduced performance with the engine warning light on the instrument cluster.
- Typical symptoms
-
- Intermittently, significantly reduced performance
- Engine warning light on
- Boost pressure and mass air flow sensor codes are stored together in the diagnostic memory
- Vehicles affected
-
- Ford Transit 2006 range 2.4 TDCi 140 16v
- Main code
-
- P0234 Turbocharger boost pressure, high reading
- Related codes
-
- P2563 Turbocharger boost pressure sensor, incorrect operating range
- P1103 Mass air flow sensor, range/performance inconsistency
On this fault the diagnostic tool often returns several codes together.
- Solution
-
See the repair procedure verified on Sema Repair.
The cause and the repair are on Sema Repair
On Sema Repair this code is linked to verified case studies, with the confirmed cause case by case, the job step by step, indicative times, the manufacturer's notes and a photograph of the component with the point of intervention highlighted.