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A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

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Old 04-02-2014, 12:10 AM   #1
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Default 6 Fault Codes.

I have popped 6 DTC's .

P1454- Exhaust Tempature Sensor 1 (G235) Shirt to ground

P1555- Charge Pressure Upper Limit Exceeded

P0442- Evap Emmision Cont Sys (Small Leak) leak detected.

P0300- Random/Multiple Cylinder Misfire Detected

P0303- Cyl.3 Misfire Detected

P1602- Power Supply (B+) Terminal 30 Low Voltage.

I intend to fix them all. I know how to fix some. But the question is where to begin which code is highest priority and what's the cheapest place to start on. Thanks. Misfire is spark plugs and coils. Terminal 30 is my battery. But P1555 Pressure issue is my main concern and EVAP emmision leak. Any and all Intel on those 2 are very much appreciated. And a list of items to start replacing is even better.
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Old 04-02-2014, 12:44 AM   #2
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I would erase them all and concentrate on the ones that return.
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Old 04-02-2014, 08:16 AM   #3
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I would erase them all and concentrate on the ones that return.
EVAP and boost have returned 3 times. This is the first misfired and such. I'm going to by a gas cap today for the EVAP. But I need to get Into my turbos for the boost exceeding.
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Old 04-02-2014, 06:14 PM   #4
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Boost leak somewhere. I would start there as it will be the most costly items to ' protect'. If the turbos are working harder to get the specified boost you could be causing premature wear.

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Old 04-02-2014, 06:58 PM   #5
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Mas...waste of time. He said he was going to scrap it.
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Old 04-02-2014, 08:19 PM   #6
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Boost leak somewhere. I would start there as it will be the most costly items to ' protect'. If the turbos are working harder to get the specified boost you could be causing premature wear.

Cheers
Where should I start? Im not to familiar with turbos. Just the occasional super charger.
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Old 04-02-2014, 08:21 PM   #7
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Mas...waste of time. He said he was going to scrap it.
That all depends what happens this weekend. I'll get my final bill if it's more then $4500 yeah it's going to be traded for an RS7. Or wich ever I like driving better idk. Goi g to drive all the different models.
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Old 04-02-2014, 08:22 PM   #8
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Where should I start? Im not to familiar with turbos. Just the occasional super charger.
I meant a place to start looking for the leak.
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Old 04-02-2014, 09:54 PM   #9
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Trade it to me for the ultra reliable 2.8!

I need boost!
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Old 04-02-2014, 09:55 PM   #10
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I tried not to respond to this thread, but I've seen too many threads like this recently...basically it's the following story:

person buys a dream car (fill in the blank, but usually costing less than $5K), then a few months into ownership realizes it has some issues and complains about XYZ, then throws out a statement that they don't care for the car and will get another Audi (usually 20X more expensive than the original car - RS7, R8, etc...).

Sorry but i'm doubting that you plunked down whatever you did on a 15+ year old C5, when you could actually purchase an RS7...the 2 cars are worlds apart!

BTW, here's the other thread, that the OP here reminded me of: A6-RS6

Lastly, with the issues you've described, I doubt the trade in for the RS7 will get you car cover for the new ride.
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Old 04-02-2014, 09:55 PM
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