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Author Topic: Audi TTRS Intank fuel pump wiring mod  (Read 6838 times)

Offline aarondsg

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Audi TTRS Intank fuel pump wiring mod
« on: April 16, 2015, 12:58:11 pm »
Hi does anyone have a link or any information to help me complete this wiring mod ?
I heard because of the starting amps on a ttrs in tank pump it overheats the fuel controller and causes fuel cut one you go throught the gears at wot.
Apparently there is a wiring mod that will prevent this .
any help please ?
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Offline Pikey Motorsports

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #1 on: April 16, 2015, 10:12:15 pm »
Speak to TSR they figured out how to bypass it on mine
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Offline vRSAlex

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #2 on: April 17, 2015, 07:56:25 am »
I've not once had an issue on the vRS.
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Offline aarondsg

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #3 on: April 17, 2015, 08:44:07 pm »
should i just fit it and hope for the best ? @vRSAlex
Niki recons i will get fuel cut around 140mph  :ashamed:
Its still in box unused was gonna get it refunded

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Offline basman

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #4 on: April 18, 2015, 12:57:00 am »
 :jumping: :jumping: if you hear how id like to know also as mine if limping, would cts already have this built in??

Offline Pikey Motorsports

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #5 on: April 18, 2015, 01:31:58 am »
Most are ok with k04 its when u work them hard the more my boost went up the worse it got
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Offline aarondsg

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #6 on: April 18, 2015, 03:14:26 am »
@basman
Dont be silly.
They need the feed bypassed for when on wot somehow.
You would have to run a seperate feed.
The ttrs pump draws over double the current over heating the fuel control unit
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Offline aarondsg

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #7 on: April 18, 2015, 03:16:36 am »
@Pikey Motorsports ok thanks
i may try it then .
Just dont wanna be out boosting and get fuel cut as people dont tend to buy excuses well  :signLOL:
All i want is a wiring diagram or some explanation how to do it.
Ill try tsr see if they will help but dont wanna pay someone to do it if it can be done by myself
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Offline Softishman

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #8 on: April 18, 2015, 06:37:30 am »
Post your solutions here later on!

Offline Wash

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #9 on: April 18, 2015, 11:40:57 am »
I'm currently getting quite bad fuel cut at higher revs, already replaced hpfp for an autotech one, changed the fuel filter and changed the lpfp for another used one. Did some logging on VCDS and the fuel pump struggles at higher revs and doesn't maintain 6 bar of pressure (which I believe is what it should be). Was going to get an rs3/ttrs lpfp but now it looks a bit more complicated than that...

Offline aarondsg

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #10 on: April 18, 2015, 12:12:41 pm »
if i get a solutiion will do
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Offline pudding

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #11 on: April 20, 2015, 04:51:17 pm »
I'm currently getting quite bad fuel cut at higher revs, already replaced hpfp for an autotech one, changed the fuel filter and changed the lpfp for another used one. Did some logging on VCDS and the fuel pump struggles at higher revs and doesn't maintain 6 bar of pressure (which I believe is what it should be). Was going to get an rs3/ttrs lpfp but now it looks a bit more complicated than that...

I thought the (standard) pump was variable pressure, 4 - 6 bar?  So long as it doesn't fall below 4, it should be OK.


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Offline Wash

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #12 on: April 20, 2015, 09:03:59 pm »
I'm currently getting quite bad fuel cut at higher revs, already replaced hpfp for an autotech one, changed the fuel filter and changed the lpfp for another used one. Did some logging on VCDS and the fuel pump struggles at higher revs and doesn't maintain 6 bar of pressure (which I believe is what it should be). Was going to get an rs3/ttrs lpfp but now it looks a bit more complicated than that...

I thought the (standard) pump was variable pressure, 4 - 6 bar?  So long as it doesn't fall below 4, it should be OK.
Well it was reaching 100% duty cycle and 4bar when I'm reaching higher revs which then results in fuel cuts for me.

Offline basman

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #13 on: April 27, 2015, 10:43:51 pm »
I'm currently getting quite bad fuel cut at higher revs, already replaced hpfp for an autotech one, changed the fuel filter and changed the lpfp for another used one. Did some logging on VCDS and the fuel pump struggles at higher revs and doesn't maintain 6 bar of pressure (which I believe is what it should be). Was going to get an rs3/ttrs lpfp but now it looks a bit more complicated than that...

I thought the (standard) pump was variable pressure, 4 - 6 bar?  So long as it doesn't fall below 4, it should be OK.
Well it was reaching 100% duty cycle and 4bar when I'm reaching higher revs which then results in fuel cuts for me.
any news on this?? @vRSAlex @aarondsg

Offline Pikey Motorsports

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Re: Audi TTRS Intank fuel pump wiring mod
« Reply #14 on: April 28, 2015, 12:30:19 pm »
Rs3 control harness fixes it apparently it's the easy option but expensive
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