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6 Fault Codes.

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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: http://forums.audiworld.com/showthread.php?t=2860432

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, 10:01 PM   #11
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Originally Posted by OGBULLYLOCDAWG View Post
Trade it to me for the ultra reliable 2.8!

I need boost!
I like the turbos lol theyre addicting. I had a 2.8 jetta that was a fun rally car.
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Old 04-02-2014, 10:06 PM   #12
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Originally Posted by raj99 View Post
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: http://forums.audiworld.com/showthread.php?t=2860432

Lastly, with the issues you've described, I doubt the trade in for the RS7 will get you car cover for the new ride.
That thread is pact with nothing but movie quotes lol and I have good credit I just have commitment issues with the long term loans. I dont want to be stuck with a 5 year car payment and realize the issues I have now are going to happen to a new Audi as well. The car is a machine it doesnt die. Just breaks Down it's just a matter of money and time to fix it. I have decent cash flow but I don't want to lose days of work just to fix a different sensor every week. And shop prices are rediculous.
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Old 04-02-2014, 10:09 PM   #13
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And I am starting with N75. Most threads I've read lead to that part. It's only $80. And I replaced my spark plugs that helped a lot it would appear it has had the same plugs for all 100k miles.
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Old 04-02-2014, 10:15 PM   #14
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Quote:
Originally Posted by Anziil View Post
...I have decent cash flow but I don't want to lose days of work just to fix a different sensor every week. And shop prices are rediculous.
if you think that shop prices are ridiculous on a 15 year old C5, wait till you get the service bill on an RS7. good luck, but let's be realistic that you are moving from your 'dream car' (C5) directly to an RS7...at least you didn't throw out that you make $300K and all the other BS the other poster did...

Last edited by raj99; 04-02-2014 at 10:23 PM.
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Old 04-02-2014, 10:27 PM   #15
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I wish I made 100k/year and I just want to make my car last . Don't get me wrong I love this car I just get stressed about **** easy. And popping 6 codes that could kill the car stresses me out lol but I went to work and let out my aggitations and decided to change my spark plugs and drive it along the high way and it runs smooth. But that pressure code worries me the rest are mostly fixed already. I'm going to yank out and examine my EGT this weekend might just need to be cleaned idk. Bit I'll find out.
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Old 04-02-2014, 10:28 PM   #16
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Originally Posted by Anziil View Post
I wish I made 100k/year and I just want to make my car last . Don't get me wrong I love this car I just get stressed about **** easy. And popping 6 codes that could kill the car stresses me out lol but I went to work and let out my aggitations and decided to change my spark plugs and drive it along the high way and it runs smooth. But that pressure code worries me the rest are mostly fixed already. I'm going to yank out and examine my EGT this weekend might just need to be cleaned idk. Bit I'll find out.
Oh it stars on this forum. My bad I said a bad word lol
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Old 04-02-2014, 10:29 PM   #17
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Originally Posted by raj99 View Post

if you think that shop prices are ridiculous on a 15 year old C5, wait till you get the service bill on an RS7. good luck, but let's be realistic that you are moving from your 'dream car' (C5) directly to an RS7...at least you didn't throw out that you make $300K and all the other BS the other poster did...
I do a lot of my own work as well.
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Old 04-08-2014, 03:11 PM   #18
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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.
So what happened with your weekend test drive? BTW, comparing an RS7 to a C5 2.7 is akin to comparing Wayne Gretzky to Ryan Garbutt...it really isn't something you can compare
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Old 04-08-2014, 06:03 PM   #19
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So what happened with your weekend test drive? BTW, comparing an RS7 to a C5 2.7 is akin to comparing Wayne Gretzky to Ryan Garbutt...it really isn't something you can compare
Replaced my half moon seals. Now my engine ticks and idles hard. Cyl 1,2,3 keep misfiring... What did I do wrong?
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Old 04-08-2014, 08:45 PM   #20
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Replaced my half moon seals. Now my engine ticks and idles hard. Cyl 1,2,3 keep misfiring... What did I do wrong?
I thi k my coils are messed.
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Old 04-08-2014, 08:45 PM
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