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General => The garage => Topic started by: Decepticons on 11 January 2013, 18:08
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Hi peeps
Could anyone make any sense of this vag com log
(http://i1057.photobucket.com/albums/t387/d3c3pt1c0nz/lamda25-redline_zps80c49fd9.jpg)
Cheers
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A long of coasting, idle driving and occasional 5 second sprint?
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Lol well I did a 2.5ish to redline 3rd gear pull but quite hard as I was by myself :whistle:
Does it look like im running way to lean ???
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Ideally need to see the figures from the redline part of the run. When theres full throttle.
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as you can probably tell total noob at this I logged blocks 20 - 02 -31. I'm just installing Excel and i try transferring the .csv on there. I don't even know what im doing on Ecuxplot
cheers mate
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can't really make sense of that graph. Log 3, 31 and 115 to get an idea of how its fuelling, also make a note of the fuel trims (32). You can email me the csv if you get stuck
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(http://i1057.photobucket.com/albums/t387/d3c3pt1c0nz/GOLF%20GTi/Logs/022031log1_zpsc04c39f8.jpg)
(http://i1057.photobucket.com/albums/t387/d3c3pt1c0nz/GOLF%20GTi/Logs/022031log2_zps4835bcf6.jpg)
(http://i1057.photobucket.com/albums/t387/d3c3pt1c0nz/GOLF%20GTi/Logs/022031log3_zpsf7d565ec.jpg)
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Hi topher, sorry just posted before reading your reply.
Sure can send the .csv if its easier mate.
Ill do a run tomorrow with block 32, dont want to floor it too much as seems my knock control is a bit to high. I do a run going to lower it with unisettings
Cheers dude
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still can't really tell, you need to see what the fuel is at certain load/boost and compare against maf values.. although it seems to be requesting 0.75 lambda in places which means the ecu is dumping fuel to cool things down. It's not lean though!
you dont need to log 32 just see what the values are after the fuel trims have settled, you'll need to drive it around for a while after resetting fault codes because that also resets fuel trims. 118 might be handy too that'll give you inlet temps as well as n75 dc so you can see how hard the turbo is being worked.
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Cheers dude, right so nothing to worry about too much?
I will log 115,32,and 002?
I post after I run it tomorrow mind you im alittle unsure about wether my MAF is on its way out, its idles ok has a little pull back if I floor ir sometimes but I guess that might my the ECU dumping fuel? When I unplug the MAF its makes no difference in the idle. Doesnt it idle rough if the MAF is unplugged?
Just saw reply will do mate, ok so reset codes, drive around (hard or normal?? driving that is lol) then check 32 on idle and note the values??
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normal driving with a few hard pulls to the red line, you'll see 2 figures as percentages http://www.ross-tech.com/vag-com/cars/fuel-trim.html
there is definitely something not right there, not the sort of thing i'd diagnose over the internet. I'd take it back to whoever mapped it and get them to check it out. 187g/s peak maf figure should be a pretty quick car!
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Thanks so much for your advice mate Ill get cracking on with it tomorrow. Its fairly quick feels about the same as my old Clio 172 sure with a few tweaks it might be a bit better. Lowering my Knock Control Timing it should be better.
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Hard to say without a full throttle log of low rpm to redline.
But 0.75 lambda... bit rich maybe? 11AFR?