![SEAT Workshop Manuals > Leon Mk1 > Power unit > Motronic injection and ignition system (1.4 l engine, 2 valves) > Self diagnosis, V.A.G Inspection Service > Self-diagnosis - general considerations > SEAT Workshop Manuals > Leon Mk1 > Power unit > Motronic injection and ignition system (1.4 l engine, 2 valves) > Self diagnosis, V.A.G Inspection Service > Self-diagnosis - general considerations >](https://workshop-manuals.com/seat/leon-mk1/images/leon-mk1-10256.png)
SEAT Workshop Manuals > Leon Mk1 > Power unit > Motronic injection and ignition system (1.4 l engine, 2 valves) > Self diagnosis, V.A.G Inspection Service > Self-diagnosis - general considerations >
![EPC light comes on when driving. Car mostly goes into limp mode.. other day the epc light and traction control light came on. Anyone else experience this or know what could cause EPC light comes on when driving. Car mostly goes into limp mode.. other day the epc light and traction control light came on. Anyone else experience this or know what could cause](https://preview.redd.it/ipk1s7oen7b81.jpg?width=640&crop=smart&auto=webp&s=978c2ad9c693bf870d50ca9f1d6e3a944b5123b6)
EPC light comes on when driving. Car mostly goes into limp mode.. other day the epc light and traction control light came on. Anyone else experience this or know what could cause
![Volkswagen Workshop Manuals > Polo Mk3 > Power unit > Simos injection and ignition system > Self diagnosis, V.A.G Inspection Service > General to self-diagnosis > Significance of EPC warning lamp (fault Volkswagen Workshop Manuals > Polo Mk3 > Power unit > Simos injection and ignition system > Self diagnosis, V.A.G Inspection Service > General to self-diagnosis > Significance of EPC warning lamp (fault](https://workshop-manuals.com/volkswagen/polo-mk3/images/polo-mk3-2763.png)
Volkswagen Workshop Manuals > Polo Mk3 > Power unit > Simos injection and ignition system > Self diagnosis, V.A.G Inspection Service > General to self-diagnosis > Significance of EPC warning lamp (fault
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