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Endless misfire

Old 10-05-2016, 11:43 PM
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Default Endless misfire

I had some misfire for over 6months now. On cold start, check engine flashing and if i wait...EPC comes out and terrible noise and shaking when epc comes out.
Coils , spark plugs have been changed
I went to the dealer , they've done the fuel injectors and timing chain test. They are good.
They said it was the Carbone accumulation. (I feel like they just wanted me to pay an extra 660$ again) So somebody i know did a carbon cleaner job with the spray can in the combustion chamber( i think its hydrogen).
Nothing changed

And im using 94 octane fuel...nothing have changed. ..im really getting frustated putting time and money into this.
Audi A3 sline 2.0T 2008 143k km .
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Old 10-08-2016, 01:32 PM
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Default Re: Endless misfire

what are the codes?.Carbon cleaning at a indi be about $450.
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Old 03-05-2018, 04:14 PM
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Default Re: Endless misfire

i like your post .
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Old 03-14-2018, 08:53 AM
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Default Re: Endless misfire

Id be interested in the MAF readings
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