p0234
Moderate
Fiat · Cars
Engine Overboost Condition
Quick Answer
Error code P0234 on your Fiat Cars means: Engine Overboost Condition. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Monitor boost pressure with diagnostic scanner
2
Test boost control solenoid function
3
Check wastegate actuator movement
4
Test boost pressure sensor accuracy
5
Inspect turbocharger for damage
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Boost control solenoid
Wastegate assembly
Turbocharger
Related Error Codes