1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior

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Topic: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior (Read 24403 times)

vtraudt

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #30 on: January 18, 2013, 12:17:28 PM »

First test drive today after correcting the N75. Boost not anymore going through the roof.
But I have what I call 'boost pumping': boost swings between 10-15 psi at mid range rpm.

bad video here.

http://s853.beta.photobucket.com/user/vtraudt/media/1998%20Passat%20Big%20Guy%20John/1998PassatBigGuyboostpumping_zpsc21422ad.mp4.html

I will attach VAGcom log later.


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2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

vtraudt

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	Re: 1.8T AEB - Giac PC 16 - boost swings "boost pumping" « Reply #31 on: January 20, 2013, 10:58:28 AM »

I set the fuel pressure to 43 psi (3.0 bar as per Giac).
I ran a 5th gear log WOT for the mid RPM range where the boost pumping occurs (slow enough to get at least some data points with VAGcom).

Attached is the excel file. I don't see anything weird there. Can someone take a look and see if there is anything that points to the culprit for the boost swings?


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2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

nyet

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #32 on: January 20, 2013, 10:08:37 PM »

1) please do not upload excel files. Stick with the plain csv.
2) consider using ecuxplot


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ME7.1 tuning guide
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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

vtraudt

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #33 on: January 21, 2013, 05:49:09 AM »

Quote from: nyet on January 20, 2013, 10:08:37 PM

1) please do not upload excel files. Stick with the plain csv.

Reason?


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2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

vtraudt

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #34 on: January 21, 2013, 05:53:35 AM »

Quote from: nyet on January 20, 2013, 10:08:37 PM

2) consider using ecuxplot

Thought its for Me7.
Works on AEB ecu for data logging? If so, will certainly try.


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2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

vtraudt

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #35 on: January 21, 2013, 06:01:38 AM »

Quote from: nyet on January 20, 2013, 10:08:37 PM

2) consider using ecuxplot

Thought its for Me7.
It works on AEB ecu for data logging? If so, will certainly try.
NYET: can you send me the ecux definition file for 1998 AEB ECU 8D0 907 557 P?


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2002 Allroad 2.7T 6spd stage 2
1998 A4 1.8T 5spd stage 3
1996 A4 2.8 auto stock

nyet

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #36 on: January 21, 2013, 04:48:15 PM »

Quote from: vtraudt on January 21, 2013, 06:01:38 AM

Thought its for Me7.

should work with ecux and vagcom/vcds. If it doesn't send me the log and ill patch it up so it does.

Quote

NYET: can you send me the ecux definition file for 1998 AEB ECU 8D0 907 557 P?

sorry, dont have that Sad

you'll have to talk to APR about it... which means you're boned heh.


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nyet

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	Re: 1.8T AEB - Giac PC 16 - fuel pressure, part throttle behavior « Reply #37 on: January 21, 2013, 04:49:50 PM »

Quote from: vtraudt on January 21, 2013, 05:49:09 AM

Reason?

I have log parsers that parse .csv

When people post excel files, they save it off in various unparseable (and proprietary) excel formats. Even exporting it back to .cvs generally ends up with something not even close to what the original was.


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