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Old 07-02-2018, 10:26 PM
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Default Epc light and check engine on

Was driving then yellow flashing engine light came on, shortly followed by the EPC light and both kept illuminated. Car now shakes when idle. Replaced one worn out spark plugs but still no change, what could be the problem? 2010 1.8T A3.127k kms
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Old 07-03-2018, 01:43 AM
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Originally Posted by Protasius07 View Post
Was driving then yellow flashing engine light came on, shortly followed by the EPC light and both kept illuminated. Car now shakes when idle. Replaced one worn out spark plugs but still no change, what could be the problem? 2010 1.8T A3.127k kms
Hopefully itís just a coil pack. Worn plugs add stress to them. Youíll need a scan to determine which one or if that is truly the case.
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Old 07-03-2018, 02:58 AM
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Originally Posted by J. Patterson View Post

Hopefully itís just a coil pack. Worn plugs add stress to them. Youíll need a scan to determine which one or if that is truly the case.
I also think it's just a coil pack. Car starts smoothly even though I feel like it lost a bit of power when I accelerate. Will surely have it scanned.
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Old 07-11-2018, 08:01 AM
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If you got a reader get the codes now. Itll say misfire on cylinder 3 for example. Swap the suspected bad coil to another cylinder and if you than get a code for that cylinder its the coil. If not its something else.
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Old 07-12-2018, 12:00 AM
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Originally Posted by THEWIDOWSON8 View Post
If you got a reader get the codes now. Itll say misfire on cylinder 3 for example. Swap the suspected bad coil to another cylinder and if you than get a code for that cylinder its the coil. If not its something else.
Changed all four coils, running smoothly now. The mechanic reseted the codes but engine light still on, will it go off itself after I drive a couple of kilometers or what?
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Old 07-12-2018, 02:28 AM
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Originally Posted by Protasius07 View Post
Changed all four coils, running smoothly now. The mechanic reseted the codes but engine light still on, will it go off itself after I drive a couple of kilometers or what?
If the light is on there will be a code present. Something showed back up after clearing or he failed to clear properly. It should be scanned again to see what that is. It COULD go away but that is unpredictable.
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