Pages: 1 [2]
Author Topic: 1.8t Audi TT 018H big turbo, stepped power delivery, large timing swings (steps)  (Read 27466 times)
ibizacupra
Full Member
***

Karma: +4/-10
Offline Offline

Posts: 111



Unplug MAF, is it alot better then?

no maf does'nt make a difference no..
changed some other tables and its slightly less but not yet gone away

Logged
littco
Hero Member
*****

Karma: +52/-7
Offline Offline

Posts: 903



Have you tried it with TI turned off to see if its that which is causing it?
Logged
ibizacupra
Full Member
***

Karma: +4/-10
Offline Offline

Posts: 111



Have you tried it with TI turned off to see if its that which is causing it?
TI?
sorry not following you dan
Logged
littco
Hero Member
*****

Karma: +52/-7
Offline Offline

Posts: 903



Sorry torque intervention. I'm sure you've got it covered so really was just a suggestion. Seems to be topic of the month. :-)
Logged
ibizacupra
Full Member
***

Karma: +4/-10
Offline Offline

Posts: 111



Sorry torque intervention. I'm sure you've got it covered so really was just a suggestion. Seems to be topic of the month. :-)

I have applied all the ones that were told to me.. 4 of the 6 sent I had already done previously.. and it has'nt cured it
which maps did you have in mind for preventing this?

Logged
professor
Sr. Member
****

Karma: +25/-0
Offline Offline

Posts: 409




Do you have a spare ecu to test?
Also have you check if eeprom has stored something unusual?
Logged

Seat Ibiza MK4 Cupra 1.8t 20V, stg3.
"Those 1.8T 20V machines are really tough" ©
littco
Hero Member
*****

Karma: +52/-7
Offline Offline

Posts: 903



Tmnsmn set to -48
Tansmn set to -48
Kfmizuof set to 99.6 across the map

Sure you know but These disable the torque monitoring. If the timing issue goes away then I guess you know it's torque maps are responsible. It's more a fault finder than solution.

Logged
phila_dot
Hero Member
*****

Karma: +173/-11
Offline Offline

Posts: 1709



Tmnsmn set to -48
Tansmn set to -48
Kfmizuof set to 99.6 across the map

Sure you know but These disable the torque monitoring. If the timing issue goes away then I guess you know it's torque maps are responsible. It's more a fault finder than solution.



There's a codeword to disable torque intervention.

It definitely looks like torque intervention to me.

I am waiting for an M or L box S4 to crop up with a torque intervention issue to log some variables because I don't feel like sabotaging my file for the sake of testing.

Edit: Easy way to confirm torque intervention is to log zwist, zwbas, and zwsol. If zwist follows zwsol vice zwbas, then it is torque intervention.
« Last Edit: October 10, 2012, 02:45:36 PM by phila_dot » Logged
littco
Hero Member
*****

Karma: +52/-7
Offline Offline

Posts: 903



There's a codeword to disable torque intervention.


CWMDKOL

Logged
phila_dot
Hero Member
*****

Karma: +173/-11
Offline Offline

Posts: 1709



CWMDKOL

CWMDKOL only affects slow path intervention (load) and is not very useful.

CWMDAPP bit 0 is B_zwappl, which has the same effect as B_nozwe. If set, this bit forces zwist = zwbas.
Logged
ibizacupra
Full Member
***

Karma: +4/-10
Offline Offline

Posts: 111



Tmnsmn set to -48
Tansmn set to -48
Kfmizuof set to 99.6 across the map

Sure you know but These disable the torque monitoring. If the timing issue goes away then I guess you know it's torque maps are responsible. It's more a fault finder than solution.


I had tansmn, kfmizuof set but not tmnsmn... will try that one.
thanks.
Logged
vwitch
Newbie
*

Karma: +0/-0
Offline Offline

Posts: 1



Why is the car asking for 32 deg of advance, I'm assuming at about full boost. I'm assuming 20 psi or more.  I'd say with the best chamber work in one of these 5v head piston combos.  You'd be looking at 10 deg at best.
Logged
ibizacupra
Full Member
***

Karma: +4/-10
Offline Offline

Posts: 111



Why is the car asking for 32 deg of advance, I'm assuming at about full boost. I'm assuming 20 psi or more.  I'd say with the best chamber work in one of these 5v head piston combos.  You'd be looking at 10 deg at best.

these can support way more advance than 10deg

torque intervention from ARMD etc was what was messing with the timing and causing the steps

We have cars on 400+bhp which happily support low 20 deg timing up top under 1.8bar boost as an example

Logged
aef
Hero Member
*****

Karma: +69/-46
Offline Offline

Posts: 1601



Quote
Edit: Easy way to confirm torque intervention is to log zwist, zwbas, and zwsol. If zwist follows zwsol vice zwbas, then it is torque intervention.

what means "vice" in this sentence? my english is limited Sad

I am trying to understand why my ignition isnt optimal. Is zwbas the same like zwbasar_1, 2, 3 and zwbasar_4?
Logged
nyet
Administrator
Hero Member
*****

Karma: +607/-168
Offline Offline

Posts: 12270


WWW

what means "vice" in this sentence? my english is limited Sad

Probably a typo - likely meant "versus"
Logged

ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
Pages: 1 [2]
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.029 seconds with 15 queries. (Pretty URLs adds 0s, 0q)