Still have the misfire/surge problem at stage 2+ & after a solution

gynads

gynads

Registered User
Joined
Oct 10, 2009
Messages
333
Reaction score
24
Points
18
Location
NULL
I am after getting to the bottom of this. After having run Revo stage 1 and everything being fine, i went for stage 2 and had the dreaded misfire at 5-6k, after speaking to my tuner he said the rest of the exhaust sytem and or the HPFP will cure it (after ruling out the valve springs) , and it hasn't. I was wondering if those others are affected could either post up what cured their cars, or if they have the same promblem weather there is a common denominator? mine details are as follows

07 22k S3
Stage 2+ software
Autotech HPFP
RS4 Fuel pressure regulator v/v
THS intercooler
Denso Iridium IK24 plugs
Milltek TBE
EVOMS intake

Any input would be greatly recieved guys, as although its not as bad as the power surge felt at stage 2, after spending a lot of money (to me anyway!!) I'd like to find a cure
 
Seems fairly common TBH Boydie, a friend of mine has exactly the same spec as mine and exaclty the same problem (were tuned at the same time more or less )
 
I have this problem, Have a stage 1 on mine and I lose power towards the end of the rev range.
 
I know this relates to the TT-RS directly,but the root problem may be of use to you...

TTRS tuning - View Single Post | VAGOC.co.uk

I've probably also already mentioned that the misfire at high rpm on mine was related to airflow at or near peak rpm through the intake system,and whilst I'm not saying the Evoms can't flow sufficient air,it may be worth a look.

Edited to remove my own oversights in editing!...apologies for that,and congratulations to myself for living up to my avatar's reputation.
 
Last edited:
It's nothing to do with the airflow from an Evoms. So that's a start.

Gynads - I understand your frustration having gone through this recently myself. Trouble is (and with the best will in the world) you are not going to get the specific answer from a forum. Although the problem is common, there is no one definative solution to the issue. For some a change of plugs, a change of coils, MAF, etc, work - but equally for some it's none of these.

My suggestion, based on the advice I got on VAGOC from Iggu, KRL and Warrencox after some frustration, is to get some logging done with VCDS. This will highlight any fueling/timing/misfire issues. I think that KRL will be close(st) to you and he knows his onions on this, so you could PM him and see if you can hook up, otherwise someone else with it.

There is a good thread on VAGOC about this on the Revo forum (started by RAPS3) where you will see all of the above in detail. Start there before spending money on things which you might not need to. The timing on my car had been set too aggresively, so I knocked it back on my Select switch and it's gone.
 
Some very interesting reading. I do have VAGCOM, but no experience of data logging plus no laptop atm or select + switch to play with. I'll fire off a PM to KRL and see if he is anywhere near Grimsby and fancies helping a brother out!

Thanks for your input guys. Much appreciated.

Adam
 
Last edited:
gynads said:
Some very interesting reading. I do have VAGCOM, but no experience of data logging plus no laptop atm or select + switch to play with. I'll fire off a PM to KRL and see if he is anywhere near Grimsby and fancies helping a brother out!

Thanks for your input guys. Much appreciated.

Adam
Click to expand...

Well I have Select + and a laptop...mate I know you work away, but if there is no one nearer I will try my best to hook up soon and see what we can do. Iggu showed me how to log today, so that's a start. PM me after you get in touch with KRL and when you get an answer there.
 
Last edited:
thanks ever so much for your offer reekie i really appreciate it. where abouts are you from buddy?
 
You must log in or register to reply here.

Similar threads

andy1
stage 2+ misfire help
Replies
5
Views
917
Nick_C
Nick_C
M88UES
Still have problem
Replies
3
Views
710
audigex
audigex
Ade6
Still have the same problem. Any advise??
Replies
11
Views
813
Ade6
Ade6
gynads
S3 Stage 2 & misfire problems
Replies
20
Views
4K
S3RYE
S3RYE
D
Stage 2+ S3 8P Misfire
Replies
30
Views
9K
POPOV
P
Top
Back