P0238
P0238 on Alfa Romeo — Loss of performance with black smoke from the exhaust
Code P0238 reports a high reading from boost pressure sensor 1. On the Alfa Romeo Giulietta 1.6 JTDM it shows up as a loss of performance and black smoke from the exhaust.
- System
- Fuel injection
- Component
- Intercooler-to-intake-manifold hose
- Fault
- Loss of performance with the engine warning light coming on intermittently and black smoke from the exhaust.
- Typical symptoms
-
- Loss of performance
- Black smoke from the exhaust
- Engine warning light on intermittently
- Vehicles affected
-
- Alfa Romeo Giulietta 1.6 JTDM 16v
- Main code
-
- P0238 Boost pressure sensor 1, high reading
- Related codes
-
- P023861 Boost pressure sensor 1, high reading, signal calculation error
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.