S4 w/ RS6 Turbos Issue

Pages: 1 2 3 [4]

« previous next »

Author

Topic: S4 w/ RS6 Turbos Issue (Read 31105 times)

tjwasiak

Sr. Member

Karma: +26/-0
Offline

Offline

Posts: 420

	Re: S4 w/ RS6 Turbos Issue « Reply #45 on: May 09, 2015, 04:41:59 PM »

Quote from: prj on May 09, 2015, 03:47:50 PM

Disabling EGT's is done by 3 codewords, not disabling DTC's. That does absolutely nothing to solve the issue.

CDATR, CDATS and which one?


	Logged

BerkleyJ

Full Member

Karma: +3/-1
Offline

Offline

Posts: 82

	Re: S4 w/ RS6 Turbos Issue « Reply #46 on: May 09, 2015, 04:47:55 PM »

Quote from: tjwasiak on May 09, 2015, 04:41:59 PM

CDATR, CDATS and which one?

Quote

If you want to disable your EGT sensors:[60] (Note that my old M-box xdf is wrong[61] for CDATR/ATS. Please use these offsets.)

CDATR (0x18196) - Configuration byte diagnosis exhaust gas temperature regulation
CDATS (0x18197) - Configuration byte diagnosis exhaust gas temperature sensor

There is anecdotal evidence[62] that this will not allow you to completely remove the EGT sensors; keeping dead ones connected might be necessary, or:

CATR (0x192CA) - Configuration byte exhaust gas temperature regulation[63]

Alternately, setting both of these to their maximum (1229) may help: [64]

TABGSS (0x1C514) and TABGSS2 (0x1C516) - Desired exhaust gas temperature for EGT regulation

You shouldn't have to touch these, but are included here for completeness:

CLAATR - Error class exhaust gas temperature regulation
CLAATR2 - Error class exhaust gas temperature regulation bank 2
CLAATS - Error class exhaust gas temperature sensor
CLAATS2 - Error class exhaust gas temperature sensor bank 2

From the S4wiki


	Logged

ddillenger

Hero Member

Karma: +641/-21
Offline

Offline

Posts: 5640

	Re: S4 w/ RS6 Turbos Issue « Reply #47 on: May 09, 2015, 10:37:09 PM »

Quote from: tjwasiak on May 09, 2015, 04:41:59 PM

CDATR, CDATS and which one?

CATR


	Logged

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 experience!

Email/Google chat:
DDillenger84(at)gmail(dot)com

Email>PM

BerkleyJ

Full Member

Karma: +3/-1
Offline

Offline

Posts: 82

	Re: S4 w/ RS6 Turbos Issue « Reply #48 on: May 15, 2015, 04:24:03 AM »

That did in fact solve the issue, as my one EGT sensor was intermittently failing.

I have run into a new (less problematic) issue. Under WOT, as soon as I hit peak boost, it chokes up for just a fraction of second or so and then pulls fine the rest of the way. I'll try to get a log up soon.

Nevermind, It's just throttle cut from overboost. Still working on the tune.


« Last Edit: May 15, 2015, 10:57:52 AM by BerkleyJ »	Logged

nyet

Administrator
Hero Member

Karma: +608/-168
Offline

Offline

Posts: 12270

	Re: S4 w/ RS6 Turbos Issue « Reply #49 on: May 18, 2015, 03:37:24 PM »

Quote from: BerkleyJ on May 15, 2015, 04:24:03 AM

Nevermind, It's just throttle cut from overboost. Still working on the tune.

the last log you posted showed no overboost.


	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

BerkleyJ

Full Member

Karma: +3/-1
Offline

Offline

Posts: 82

	Re: S4 w/ RS6 Turbos Issue « Reply #50 on: May 20, 2015, 03:34:41 AM »

Quote from: nyet on May 18, 2015, 03:37:24 PM

the last log you posted showed no overboost.

Are you talking about the "DifferentTuneLog.csv"

Because that's a locked down VAST tune with a few other issues including improperly coded out O2 sensors.

Here's a log with the throttle cut. I think I was running a janked up KFLDRQ2 at the time. I've since moved on.


« Last Edit: May 20, 2015, 03:43:38 AM by BerkleyJ »	Logged

Pages: 1 2 3 [4]

« previous next »

Jump to:

Navigation

Personal Tools

November 26, 2024, 09:32:56 PM

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

Navigation

Personal Tools

Search