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General VW Discussion This is a place for General VW topics (the company, not your vehicle). General topics about a specific vehicle should be posted in the General TDI Dicussion Forum sections for that vehicle platform. A4, A3 & B4, B5, etc.

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Old October 6th, 2017, 06:18   #1
Brauvura
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Exclamation 2012 VW GLI help please

I have a 2012 VW jetta gli 2.0 turbo dohc 6 speed transmission. We've replaced ignition coils, spark plugs, fuel filter, had injectors cleaned, still runs rough. Engine light blinks a few seconds and then stays on. I haven't driven it in weeks because I dont want to mess it up! We buy only OEM parts. I've talked to people and they think it might be electrical, but it's a guess.
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Old October 19th, 2017, 20:13   #2
Powder Hound
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My advice: 1) find someone with a Ross-Tech VCDS dongle and get a good read on what the ECU is complaining about. That is an order of magnitude better than guessing.

2) This is a diesel forum. While people here like to help, admittedly most people's expertise will be in the are of compression ignition engines, hence the lack of response.

3) You might find better info at vwvortex.

Good luck, and

Cheers!

PH
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Old October 27th, 2017, 10:32   #3
Matt-98AHU
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Does it smooth out at all after the engine has warmed up?
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Old October 27th, 2017, 10:50   #4
oilhammer
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Intake ports gunked up would be my (very experienced with these) guess.

Very common, I do these a LOT.

You also have to check the crankcase breather valve. Those fail a LOT too.

Where in Missouri are you?
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