Black smoke, rough idle and limp mode in town traffic
2010 · Fiat Punto Evo · 1.3 Multijet 75 · 150,000 km
P0404
Root cause: EGR valve sticking partly open with carbon from short trips.
Repair cases shared by mechanics and reviewed before publishing. Hide the solutions to diagnose them yourself first. Cases marked "Training case" are written by ipacen from typical faults for practice.
2010 · Fiat Punto Evo · 1.3 Multijet 75 · 150,000 km
Root cause: EGR valve sticking partly open with carbon from short trips.