kevinlovepoyan

hi guys..
my car is 2014 c63 with weistec s2 sc. MBH lth and akapovic mid-rear exhaust. ECU tune is TPE tuned and it is good.
stock idle rpm is around 700-750. car just jerky climbing up a slope on low rpm.
so my tuner increase 100 rpm on it..but did't solve the issue.
i'll attatch the video clips...
hopefully someone could tell what is going on....thx..

hachiroku

go back to your tuner. it all falls back on the tune.

deadlyvt

Sounds pretty bad to be honest hard to tell from the Audio but sounds like some kind of mechanical clicking? Runs good other than at idle?

mr747

tune issue

kevinlovepoyan

yes i guess so..i'll be back to him....

kevinlovepoyan

i don't think it's cliking on body after several check at the first time...yeah..tune runs good and safe for about 2 yrs...i ll find the dyno sheet for u guys on here..

kevinlovepoyan

tuner add 100 rpm on idle but same issue happens...

kevinlovepoyan

dotted was NA years ago and solid line is SC for now...same car same dyno

kevinlovepoyan

another video...is more clear to hear and watch...i used to have mbh x remus cat back setup..but didn't meet this issue or maybe it had happened but too slightly to notice...

hachiroku

couple of things...

1. what is up with your tune where you have a HUGE dip in power in the lower RPM's...
2. from the sound of it without seeing the tune file, it sounds like you're running PIG rich.

SikC63

When was the last time you switched out the spark plugs, 02 sensors, or replaced your MAF sensors? The car sounds like its running super-rich and not getting enough air. This can be caused by failing sensors preventing airflow to the motor.

kevinlovepoyan

i have no idea of the dip for my tune...BTW another tuner says so that the fuel is running wrong like u guys said..i use dashcmd app to log and i'll attach it...pls have a look for me and i'll be very appreciated..

kevinlovepoyan

Weistec spark plug and new o2 sensor replaced back in 2yrs ago...
pls check my datalog file thx.

kevinlovepoyan

log no.1
car going up the slope
https://datazap.me/u/kevinlovepoyan/...?log=0&data=21

log no.2
drive on the road as usual feeling wrong somewhere but can't tell what ....
https://datazap.me/u/kevinlovepoyan/...?log=0&data=21

thx guys need ur help and advices....thx..

kevinlovepoyan

immelman

Put a new set of plugs in it, it’s time anyway. I had the porcelain fail on one of my plugs with only a few hundred miles after a s/c install.

roadtalontsi

So car has ran great for 2yrs with this setup. Or new issue since new setup was just installed?
I'm going to go with needs a new mct unit. shockingly not that expensive on the parts side but trans has to come out.
However air / fuel issues will cause this if the adaptations are out by more than 1%