Severe timing oscillations

Pages: 1 2 3 [4]

« previous next »

Author

Topic: Severe timing oscillations (Read 43010 times)

nyet

Administrator
Hero Member

Karma: +607/-168
Offline

Offline

Posts: 12268

	Re: Severe timing oscillations « Reply #45 on: November 23, 2011, 11:37:33 AM »

Quote from: Rick on November 23, 2011, 06:09:05 AM

it was simply poorly calibrated torque model.

PLEASE details!


	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

phila_dot

Hero Member

Karma: +173/-11
Offline

Offline

Posts: 1709

	Re: Severe timing oscillations « Reply #46 on: November 23, 2011, 02:17:02 PM »

Quote from: Rick on November 23, 2011, 06:09:05 AM

Well on this car, oscilaltions were an easy fix, it was simply poorly calibrated torque model. I've attached the fixed screenshot. There are some knock corrections but they can be smoothed out.

In for details as well. KFMIOP?

Quote from: Rick on November 23, 2011, 06:09:05 AM

What is interesting on this log, is that ZWBAS is higher than ZWGRU. Only addition I can think of is down to warmup which had well finished. Need to take a look at KR.

My guess is DZWWL or possible that was not the current array member of ZWBAS. It would be really nice to log the ouput ZWBAS rather than the array members.


	Logged

Rick

Hero Member

Karma: +63/-4
Offline

Offline

Posts: 704

	Re: Severe timing oscillations « Reply #47 on: November 23, 2011, 02:23:22 PM »

Yes,

Load was hitting 210, and IOP was untouched hence the intervention.

Rick


	Logged

nyet

Administrator
Hero Member

Karma: +607/-168
Offline

Offline

Posts: 12268

	Re: Severe timing oscillations « Reply #48 on: November 23, 2011, 03:49:09 PM »

I'm starting to think this is why tuners started with heinously underscaled MAFs (see also GIAC's hilarious 100mm MAF)


	Logged

Gonzo

Sr. Member

Karma: +21/-30
Offline

Offline

Posts: 483

	Re: Severe timing oscillations « Reply #49 on: November 23, 2011, 05:27:30 PM »

Quote from: nyet on November 23, 2011, 03:49:09 PM

I'm starting to think this is why tuners started with heinously underscaled MAFs (see also GIAC's hilarious 100mm MAF)

Its just easier. You run into less issues with the torque monitoring.
Its not proper but it works.


	Logged

julex

Hero Member

Karma: +79/-4
Offline

Offline

Posts: 923

	Re: Severe timing oscillations « Reply #50 on: November 28, 2011, 12:42:14 PM »

I think I found the source of my timing oscillations. KFZWOP and KFZWOP2 maps. Once my timing would get close enough to touch the value in respective map for RPMs/NWS, it would get knocked down near the basic timing in KFZW and KFZW2 maps.


	Logged

Rick

Hero Member

Karma: +63/-4
Offline

Offline

Posts: 704

	Re: Severe timing oscillations « Reply #51 on: November 29, 2011, 12:02:16 PM »

On your case zwist was following zwsol, so yes the OP would play a part. You need to stop it following zwsol,

Rick


	Logged

judeisnotobscure

Sr. Member

Karma: +38/-10
Offline

Offline

Posts: 379

	Re: Severe timing oscillations « Reply #52 on: December 02, 2011, 02:59:21 PM »

I made kfmiop and kfmirl jive a little better and presto, intervention is gone.


	Logged

I have a b5 s4
but i just want to dance.

nyet

Administrator
Hero Member

Karma: +607/-168
Offline

Offline

Posts: 12268

	Re: Severe timing oscillations « Reply #53 on: May 04, 2012, 10:02:38 AM »

the source of my oscillations isn't op/op2 related, it seems its ARMD related

http://nefariousmotorsports.com/forum/index.php?topic=1905.0


	Logged

Pages: 1 2 3 [4]

« previous next »

Jump to:

Navigation

Personal Tools

November 23, 2024, 12:35:52 AM

Welcome, Guest. Please login or register.
Did you miss your activation email?

Navigation

Personal Tools

Search