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Author Topic: 1.8t Audi TT 018H big turbo, stepped power delivery, large timing swings (steps)  (Read 27512 times)
ibizacupra
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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

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littco
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Have you tried it with TI turned off to see if its that which is causing it?
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ibizacupra
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Have you tried it with TI turned off to see if its that which is causing it?
TI?
sorry not following you dan
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littco
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Sorry torque intervention. I'm sure you've got it covered so really was just a suggestion. Seems to be topic of the month. :-)
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ibizacupra
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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?

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professor
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Do you have a spare ecu to test?
Also have you check if eeprom has stored something unusual?
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Seat Ibiza MK4 Cupra 1.8t 20V, stg3.
"Those 1.8T 20V machines are really tough" ©
littco
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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.

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phila_dot
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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
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There's a codeword to disable torque intervention.


CWMDKOL

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phila_dot
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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.
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ibizacupra
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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.
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vwitch
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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.
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ibizacupra
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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

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aef
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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?
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nyet
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WWW

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

Probably a typo - likely meant "versus"
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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
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