p0234
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Peugeot · SUVs
Turbocharger/Supercharger Overboost Condition
Quick Answer
Error code P0234 on your Peugeot SUVs means: Turbocharger/Supercharger Overboost Condition. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Measure actual boost pressure with gauge
2
Test boost pressure sensor voltage
3
Check wastegate operation at specified boost
4
Inspect intercooler for blockage
5
Test boost solenoid with multimeter
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Boost pressure sensor
Wastegate actuator
Boost control solenoid
Intercooler
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