Audi A3 1.8t 52 reg EPC light

[Dannyworsley1]

Hey guys, just looking for advice and help..
I have an audi a3 1.8t 52 reg
It has been remapped to stage 1 and has a power flow exhaust.
When I turn the ignition on all light go off apart from the EPC light.
I continue to turn the car over and the light goes off,
But comes back on at high revs and goes into a sort of limp mode.
When I come to a stop and turn the car off and on again it goes back off.
Iv had a few people say that it is the coil pack, and that it needs a bolt down coil pack.
Anyone know of any other suggestions or if that is the correct anwser?
All help and advice would be much appreciated!

Thanks.

[Adrian E]

You need to get the fault codes read with VCDS or similar - you're clutching at straws to change anything without a proper idea where to start.

If it's running reasonably well it's not a coil pack. If it's misfiring then it might be the cause, although it could also be sensor or turbo related too, amongst other possibilities.

[Dannyworsley1]

Ok il get it plugged in to a diagnostics machine was just posting to see if anyone else has had the problem and was an easy fix.

[Dr G]

The issue is that there are so many systems/sensors that can put EML on or engage limp mode guessing is almost pointless.

Unless it's a very obvious and very common problem a proper diagnosis is usually the cheapest option as getting it wrong and throwing money at the wrong parts rapidly mounts up.

[cuprabob]

As said you need to get it scanned to read the fault codes.

EPC light is normally related to the drive by wire throttle so could be the potentiometer on the throttle pedal or an isdue with the throttle body.

[Dannyworsley1]

Ok thanks guys I'll get it tested and I'll keep you all informed to see what you think.

[tomjol]

For clarity - EPC light is not the EML light, it stands for Electronic Pedal Control.

Of course, that doesn't mean the problem isn't engine related