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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > need a little help with a log



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      08-21-2012, 05:06 PM   #1
flexinator
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need a little help with a log

running cobb stage 2+ aggressive. I am running 93(e10)gas

sorry for the horrible graph, but I'm not so talented with excel.

What i'm wondering about is:

1. is it ok that my ltft's are negative for a while under full boost
2. My stft's are up above 20
3. There is a throttle closure, how do i find out what the culprit is... i know the timing looked good, its just not graphed on here...

i'll post the full log as well if it helps.
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File Type: txt datalog1.csv.txt (36.5 KB, 88 views)
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      08-21-2012, 05:13 PM   #2
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Quote:
Originally Posted by flexinator View Post
running cobb stage 2+ aggressive. I am running 93(e10)gas

sorry for the horrible graph, but I'm not so talented with excel.

What i'm wondering about is:

1. is it ok that my ltft's are negative for a while under full boost
2. My stft's are up above 20
3. There is a throttle closure, how do i find out what the culprit is... i know the timing looked good, its just not graphed on here...

i'll post the full log as well if it helps.
Your trims aren't tapped out in either direction so it's all fine. That little throttle trimming is nothing to even worry about. If you see massive closures you may need to tweak the wgdc base through ATR but overall nothing abnormal about that log.
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      08-21-2012, 05:26 PM   #3
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Trims should not even be considered when running pump gas and a weak map ...
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      08-21-2012, 05:39 PM   #4
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Just trying to increase my familiarity with fueling as I try out some e85 maps
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      08-21-2012, 05:46 PM   #5
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Its best to have trims close to 0. I happen to catch the DME in OL during a log the other day. It was during a quick throttle on/off when a car jumped in front of me... It happens more than peeps think. I'll post it when I get a chance.
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