NefMoto

Technical => Tuning => Topic started by: kepsus on May 21, 2021, 10:45:56 AM



Title: Med 9.1 Ingnition retard /knock
Post by: kepsus on May 21, 2021, 10:45:56 AM
Hi first thanks for let me joining here.
I have a problem that my car report knock.
Original it was a BWA, but got a build CDL engine in it and fitted dsg.
 I have the vcds log here both where you see the retardm and knock, and with the knock sensor volt.
https://easyupload.io/m/5zb38n (https://easyupload.io/m/5zb38n)

Does it looks like "normal" knock, what i find strange that i have tryed also to put my aem meth with (75 % meth) on max, and seems like it dont affect the knock sensor at all. still same



Title: Re: Med 9.1 Ingnition retard /knock
Post by: Bitshifter on May 21, 2021, 08:31:12 PM
WTF :o ~10°retard @ 4800rpm on Cylinder 2

That`s not normal! Do you can log real (EGT)-temperaure? What is with AFR?

BTW: better made 3/20/115 Log, next time!




Title: Re: Med 9.1 Ingnition retard /knock
Post by: kepsus on May 21, 2021, 11:59:56 PM
Here is a fresh one , https://easyupload.io/jo61nx (https://easyupload.io/jo61nx)


Title: Re: Med 9.1 Ingnition retard /knock
Post by: Bitshifter on May 22, 2021, 11:45:06 PM
Pretty easy: boost pressure difference to high, maybe because of bad tune => check PID an an tune it.



Title: Re: Med 9.1 Ingnition retard /knock
Post by: kepsus on May 23, 2021, 03:52:11 AM
yeah i see some high spike, but would that explain the knock, even with the spike i think it puul a lot of the ingnition.


Title: Re: Med 9.1 Ingnition retard /knock
Post by: Bitshifter on May 23, 2021, 11:44:50 AM
14% boost spike...respect!  :o

So read my first post again and try to answer.


Title: Re: Med 9.1 Ingnition retard /knock
Post by: nyet on May 23, 2021, 01:04:26 PM
Fix your pid


Title: Re: Med 9.1 Ingnition retard /knock
Post by: cherry on May 23, 2021, 03:26:09 PM
Is the MAF totally wrong or is there big turbo installed?


Title: Re: Med 9.1 Ingnition retard /knock
Post by: Bitshifter on May 23, 2021, 08:34:04 PM
Is the MAF totally wrong or is there big turbo installed?

I think it is not only wrong MAF or big turbo. We don`t know AFR, EGT, or basic details of sw.



Title: Re: Med 9.1 Ingnition retard /knock
Post by: kepsus on May 23, 2021, 10:42:07 PM
Is the MAF totally wrong or is there big turbo installed?

It is running TTE480, upgrade hpfp, and Lpfp, injectors from AKS, which should been around 15 % more flow than rs3.
165 bar fuel return valve. 4 Bar mapsensor, 200 bar fuelsensor , and upgrade chargecooler.


Title: Re: Med 9.1 Ingnition retard /knock
Post by: kepsus on May 23, 2021, 10:49:07 PM
here is one with afr 0,8 on wot
https://easyupload.io/s4tbyv?fbclid=IwAR0_rD9JFopaZj2YY7h1PMaPCj4fiqEdniJ1KOIHBrRXREztC2uYKC0W2hM (https://easyupload.io/s4tbyv?fbclid=IwAR0_rD9JFopaZj2YY7h1PMaPCj4fiqEdniJ1KOIHBrRXREztC2uYKC0W2hM)


Title: Re: Med 9.1 Ingnition retard /knock
Post by: cherry on May 24, 2021, 01:23:49 AM
These upgrade turbos produce most likely a lot of backpressure, maybe this part from your knock problem. I think tte use stock manifold?


Title: Re: Med 9.1 Ingnition retard /knock
Post by: kepsus on May 24, 2021, 03:31:08 AM
https://tteglobal.com/audi/a1/2.0tfsi-2012-quattro/17/tte480-tfsi-upgrade-turbocharger

It is standard manifold, Think they have ported it, if i remember correct


Title: Re: Med 9.1 Ingnition retard /knock
Post by: Bitshifter on May 28, 2021, 06:36:29 PM
https://tteglobal.com/audi/a1/2.0tfsi-2012-quattro/17/tte480-tfsi-upgrade-turbocharger

It is standard manifold, Think they have ported it, if i remember correct


cound`t believe that ("stock injectors, stock lpfp")....never ever! OR WHP means "wish horse power"  ;D ;D ;D