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Author Topic: data logging, now looking good!  (Read 13826 times)

jamie16v

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data logging, now looking good!
« on: 12 June 2013, 15:04 »
can anyone help me out with what channels i should be logging (AGU M3.8.3) to get an idea of how my car is running?
i did a quick log today, i couldnt do much due to traffic/driving conditions. dont think i logged the correct channels, although i did a maf log and a timing/knock log, it appears i am running too much timing and also down on maf readings from calculated bhp vs previous bhp..
timing retard seems to be very bad at some points too :shocked:
i`ll post up the log in a moment, unless anyone would prefere it e-mailed is excell format?
i`m a little worried  :tongue:
« Last Edit: 14 June 2013, 19:43 by jamie16v »
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jamie16v

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Re: vag com data logging
« Reply #1 on: 12 June 2013, 15:21 »
so, here is the very short log i did, dont think i am logging the correct channels..
also, i have the standard cat fitted, still haven`t swapped back since mot  :whistle:
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Offline scarr89

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Re: vag com data logging
« Reply #2 on: 12 June 2013, 15:22 »
Put that data into a graph. Will be much easier to comprehend.
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Offline Wazzzer

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Re: vag com data logging
« Reply #3 on: 12 June 2013, 16:21 »
That's a lot of retard, you using happy shopper fuel?

Intake temps look good, air in looks ok too, what sort of power should it be?
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jamie16v

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Re: vag com data logging
« Reply #4 on: 12 June 2013, 17:04 »
Quote from: Wazzzer on 12 June 2013, 16:21
That's a lot of retard, you using happy shopper fuel?

Intake temps look good, air in looks ok too, what sort of power should it be?
it should be  texaco super, but i hardly use texaco so probably put in happy shopper without realising.
i usually use tesco momentum, (whenever they got stock  :angry: ) which the car was originally mapped with.
last RR was 223bhp-244lb/ft so looks down by 20bhp to me?? :undecided:
i`ll do another log later and see if i can get better results.. :sad:
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jamie16v

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Re: vag com data logging
« Reply #5 on: 12 June 2013, 19:19 »
2nd short log... timing still bad.. maf still reading low "er"
i dont think the standard cat is helping nor the bigger turbo  :tongue:
another thing ive noticed is it cuts back higher up in there rpm range  :undecided:
« Last Edit: 12 June 2013, 19:24 by jamie16v »
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Offline paultownsend

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Re: vag com data logging
« Reply #6 on: 12 June 2013, 20:37 »
Are you using VCDS lite?

I use 2 3 4 and that's just basic revs, maf, water and inlet temps.
Can you try rev it out to 7k in 3rd and 4th? That should see the maximum maf figures. Should also show max inlet temps.
« Last Edit: 12 June 2013, 20:50 by paultownsend »
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jamie16v

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Re: vag com data logging
« Reply #7 on: 12 June 2013, 20:49 »
no mate, an old skool version mate...
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Offline paultownsend

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Re: vag com data logging
« Reply #8 on: 12 June 2013, 20:53 »
I use VCDS lite downloaded free from the Ross tech website. And a £7 ebay blue cable.
Seems to do everything I need but n75 duty.

I need to read up on the knocking and retarding logs. I don't quite understand it....
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jamie16v

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Re: vag com data logging
« Reply #9 on: 12 June 2013, 20:56 »
have a little read here, the measuring block channels will be different depending on what engine/ecu you have though.
http://www.golfgtiforum.co.uk/index.php?topic=94432.0
« Last Edit: 12 June 2013, 21:02 by jamie16v »
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