Carli
Problem with fault code P0420 on Peugeot 208
(Translated from Spanish)
Summary of the thread
The P0420 fault code on a Peugeot 208 signifies that the catalytic converter is not operating efficiently. Possible causes include exhaust leaks before the catalytic converter or faulty oxygen sensors. Solutions involve checking for and repairing any exhaust leaks and inspecting the oxygen sensors for faults.
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PEUGEOT
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208
CarlyMechanic
The P0420 code indicates that the catalytic converter is not functioning as efficiently as it should. Start by checking for any exhaust leaks before the catalytic converter, as this can affect its performance. If there are no leaks, inspect the oxygen sensors, as a faulty sensor can also trigger this code. Let me know how it goes or if you have any further questions!