RS4 B7 VCDS Group 26 Knock Control Cylinder Voltage

4.2 V8 32v Naturally Aspirated - 414 bhp
Post Reply
abbyfaz
Neutral
Posts: 5
Joined: Sun Mar 19, 2017 11:49 pm

RS4 B7 VCDS Group 26 Knock Control Cylinder Voltage

Post by abbyfaz » Sat Nov 23, 2019 11:52 pm

Hi All,

I have just had a play with VCDS on my RS4 and noticed that measuring block 26, which shows the voltage to the knock control cylinders 1,2,3,4, has a reading of 0.156v for all of them except cylinder 1 - which is zero.

I don't have any fault codes but have noticed the car seems a bit flat above 6500rpm, hence why i plugged VCDS in.

Any of you guys have any thoughts or experience with this at all please, or even better manage to check your car to see what values you have? I have just had a carbon clean at Unit 20 so hope its not a faulty knock sensor as the manifold will need to come off again. I understand that 2 cylinders share 1 knock sensor though.

Thanks

Abby.

axnjaksn
Neutral
Posts: 8
Joined: Tue Feb 18, 2020 11:15 pm

Re: RS4 B7 VCDS Group 26 Knock Control Cylinder Voltage

Post by axnjaksn » Mon Oct 12, 2020 6:07 pm

Did you ever get this sorted out?? Chasing a fault code for knock sensor G61 and timing pull on all cylinders

Post Reply

Return to “RS4 (B7 Typ 8E) 2006–2008”

Who is online

Users browsing this forum: dan32v and 154 guests