Audi A6 C5 1.8T misfire issues

[djhs]

HI Everyone,

I recently bought an Audi A6 1.8T 2001, not knowning it would have issues straight away.

When starting the car, it will misfire ramdonly for the first minute or so and there will hardly be any power, then the car will seem to try as normal but does feel like its being held back a little.

I bought a VAG-COM reader and used VCDS lite software to read to error codes.

Please see the following codes below and suggestions where to first start to fix this issue.

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Sunday, 10 January 2016, 11:21:07.
VCDS-Lite Version: Release 1.2
Control Module Part Number: 4B0 906 018 CG
  Component and/or Version: 1.8L R4/5VT         0002
           Software Coding: 11002
            Work Shop Code: WSC 02325
                      VCID: 68A33BA31B6B
           Additional Info: WAUZZZ4BZ1N128670     AUZ7Z0Y1767040
7 Faults Found:
18010 -  Power Supply Terminal 30: Voltage too Low
        P1602 - 35-10 -   - - Intermittent
16684 - Shareware Version. To Decode all DTCs
        P0300 - 35-10 - Please Register/Activate - Intermittent
16685 - Shareware Version. To Decode all DTCs
        P0301 - 35-10 - Please Register/Activate - Intermittent
16687 -  Cylinder 3: Misfire Detected
        P0303 - 35-10 -   - - Intermittent
16686 - Shareware Version. To Decode all DTCs
        P0302 - 35-10 - Please Register/Activate - Intermittent
16395 - Shareware Version. To Decode all DTCs
        P0011 - 35-10 - Please Register/Activate - Intermittent
17536 -  Fuel Trim; Bank 1 (Mult): System too Lean
        P1128 - 35-00 -   -
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[James]

Oh dear, such a pain when you get a list of error codes like this. I think you've just got to work through one at a time and try and get to the bottom of them unfortunately. Start with the easiest stuff first.