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EPC fault on my Brand new VW POLO VIVO 1.4

\015 Hello, I have a brand new 2013 Polo Vivo. I got it brand new, its about 11 days old. I installed sound in mycar with direct cabling to the battery. Next day my car started and it had an EPC fault. and drove with no power. I took it to the dealership and they said itsmy sound. I then disconnected my sound system from the battery so that its all off and not drawing any power. Yet for 3 days ina row my car has an EPC fault when i start it. I have to letthe car idle for about 10 mins, or whenthe engine temperature is 90 degrees.\012\012Can you please let me know what the problem could be , and if the sound i installed could effect it in anyway. Because even now when the sound is discontinued, the problem persists.\015 Posted / edited by AnonymousUser on : 23-05-2022

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