Fuel pump options A6 - S6 - RS6

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
Ajc
4th Gear
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Location: Cheshire

Re: Fuel pump options A6 - S6 - RS6

Post by Ajc » Wed Jul 13, 2016 10:30 am

Just as a side note , Mine had a misfire under boost shortly before one of my turbos sh*t it's self . You say you've checked the requested and actual boost ? .
Cheers Al

04 c5 rs6 , Ebony Black, Bare shell repaint , Milltek's, PSS9's,Hotchkis Arb's,Gutted precats, hybrid turbos, Bosch 044 ,And an annoying EML light

VETRA
Neutral
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Joined: Tue Jul 05, 2016 8:23 pm

Re: Fuel pump options A6 - S6 - RS6

Post by VETRA » Wed Jul 13, 2016 10:59 am

Going for a test-ride now.
will come back with test results.
Ajc wrote:Fuel pressure regulator, N75 , Diverter Valves. ? All reasonably priced and worth changing I would suggest.
Also worth checking your injector spray patterns
Diverter Valves?
These?
78qx0EW.jpg
ready to change them all.. ))

Ajc
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Location: Cheshire

Re: Fuel pump options A6 - S6 - RS6

Post by Ajc » Wed Jul 13, 2016 12:53 pm

No the recirculating dump valves. They are plumbed in too the charge carrier with vac pipes going too them . Marked as DV's on your pic .
Cheers Al

04 c5 rs6 , Ebony Black, Bare shell repaint , Milltek's, PSS9's,Hotchkis Arb's,Gutted precats, hybrid turbos, Bosch 044 ,And an annoying EML light

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Shoppinit
Cruising
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Re: Fuel pump options A6 - S6 - RS6

Post by Shoppinit » Wed Jul 13, 2016 5:25 pm

If you suspect fuel starvation then you should log your lambda values while driving and see what happens when the problem occurs.

Also, as already said, log the requested and achieved boost.

Aren't there any DTCs stored?
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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