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Rs4 suddenly feels slow
Posted: Wed Dec 27, 2017 6:46 pm
by Stigaream
2006 Audi rs4 b7
I was out driving a long trip yesterday and suddenly I felt like a loss in power... it feels so slow.
I ran a diagnose and got this.
Anyone know what this can be ?
I can't sleep before I find out what this is all about.
Im no mechanic so I hope it's no big deal.

Re: Rs4 suddenly feels slow
Posted: Wed Dec 27, 2017 7:38 pm
by Surrey Sam
Looks like a knock sensor on its way out. They're located under the inlet manifold, so unless you are a DIY'er, it maybe worth getting a carbon clean done at the same time to best utilise the labour cost involved.
Re: Rs4 suddenly feels slow
Posted: Wed Dec 27, 2017 7:50 pm
by Stigaream
Surrey Sam wrote:Looks like a knock sensor on its way out. They're located under the inlet manifold, so unless you are a DIY'er, it maybe worth getting a carbon clean done at the same time to best utilise the labour cost involved.
Thanks for tips .
The plan is to send the car to carbon cleaning now right after New year, so I can ask if they can fix knock sensor.
Re: Rs4 suddenly feels slow
Posted: Sun Dec 31, 2017 12:51 am
by Stigaream
Can a stuck flap cause this?
Re: Rs4 suddenly feels slow
Posted: Sun Dec 31, 2017 1:00 am
by Surrey Sam
Doubt it. You can do flap test though.
Re: Rs4 suddenly feels slow
Posted: Mon Jan 01, 2018 12:14 pm
by Stigaream
From what I can read it can be det maf sensor that either need a clean or replaced since it's to rich on fuel on both bank 1 and 2.
Where is this on the rs4 b7?
Im not near the car atm. Easy to fix?
Re: Rs4 suddenly feels slow
Posted: Mon Jan 01, 2018 1:10 pm
by Surrey Sam
It's on the intake pipe, nice and easy to get at.
Re: Rs4 suddenly feels slow
Posted: Mon Jan 01, 2018 1:11 pm
by Stigaream
Surrey Sam wrote:It's on the intake pipe, nice and easy to get at.
LOL offcourse... Im sleepwriting.
Re: Rs4 suddenly feels slow
Posted: Fri Jan 05, 2018 10:49 am
by rickster147
I've had these codes on my car but not the knock one
It feels hesitant now and again and was told might be o2 sensors?
Re: Rs4 suddenly feels slow
Posted: Fri Jan 05, 2018 11:19 am
by Stigaream
I deleted all codes and drove the car HARD. Seems its gone now. I think I need a real carbon clean
