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2007 - S6 - All The lights came on

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Old Feb 1, 2024 | 02:02 PM
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Default 2007 - S6 - All The lights came on
Loooong story short - After fixing the oil leak - need to Audi rolled aluminum one - they stop the leak!
One day of peace and now all the lights are on.
Car will start up - after a longer than normal start cycle - run for a few seconds and dies stating the ESP -check owners manual.
I have attached the Scan log - I cleaned the MAFs and while i was at it the Throttle bodies too..
HELP please
~Ben
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Old Feb 6, 2024 | 03:21 PM
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Check your HPF pumps and injectors also fuel filter or even bad gas. might have a air\fuel ratio error that's causing the car to go into limp mode (ESP) check for lean or rich fuel air readings.
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Old Feb 10, 2024 | 07:59 AM
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Thank you for that - digging into it this afternoon - learning up on how to do all that and heading out.
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Old Feb 10, 2024 | 08:33 AM
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Several engine codes report low battery voltage. Have a look at stabilizing battery voltage and clear all DTCs then see what codes return.
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Old Feb 10, 2024 | 09:04 AM
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Looks like the High Pressure fuel pump is blown - Wonder if these can be rebuilt vs bought... these ain't cheap...

Zip tie was added a few minutes ago to ensure connections.
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Old Feb 10, 2024 | 10:29 AM
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AFAIK, you can only replace the HPFP. Try one of the on-line OEM part suppliers, e.g., www.autohausaz.com, for a replacement.
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Old Feb 12, 2024 | 12:17 PM
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Are you declaring it "blown" by virtue of the connector needing to be tie-wrapped or is there some other indicator that you are going by?
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Old Feb 14, 2024 | 02:10 PM
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If you messed with the TB, you need to go through the basic settings routine on them in VCDS
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Originally Posted by bnero42
Looks like the High Pressure fuel pump is blown - Wonder if these can be rebuilt vs bought... these ain't cheap...
Zip tie was added a few minutes ago to ensure connections.
I recently replaced one of my HPFP (drivers side) on my A6 4.2l.
On mine the solenoid coil went bad (open circuit). I sourced an OEM HPFP (Hitachi) from ebay for $300.
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Old Mar 11, 2024 | 03:33 PM
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Originally Posted by jonzie77
Are you declaring it "blown" by virtue of the connector needing to be tie-wrapped or is there some other indicator that you are going by?
I am declaring it blown as it was actively leaking fuel.
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