My first ever datalog....
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 685
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From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
My first ever datalog....
Some things even to me dont look right, but i since this is the first time I have ever done this, i have no idea what to make of it.
Tell me what you think.....please
Tell me what you think.....please
Last edited by camaro1185; Feb 13, 2010 at 11:32 AM.
Senior Member
Joined: Nov 2006
Posts: 672
Likes: 1
From: Camden, MI
Car: 1985 IROC-Z28
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.73
Re: My first ever datalog....
160baud FTL...
by and large, it seems you're pretty lean almost everywhere, except for lines 643-648...
EDIT: what ADS are you using? because some of the conversions are VERY wrong...
by and large, it seems you're pretty lean almost everywhere, except for lines 643-648...
EDIT: what ADS are you using? because some of the conversions are VERY wrong...
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 685
Likes: 0
From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Re: My first ever datalog....
Im using "1227165_160" Ads
Is that all you see. It all looks foreign to me.
I noticed my bml's were a little off, and also shouldnt my knock count be at 0?
What do you mean the conversions are very wrong?
Thanks
Senior Member
Joined: Nov 2006
Posts: 672
Likes: 1
From: Camden, MI
Car: 1985 IROC-Z28
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.73
Re: My first ever datalog....
BPW never even gets converted from what i can see.
airflow looks like it's showing Hz instead of grams/sec, but that could be a good thing.
knock count can go up for a few reasons, and it look like it went up to 19 from cranking the motor, so you can disregard that. the rest look like they could be genuine knock...
airflow looks like it's showing Hz instead of grams/sec, but that could be a good thing.
knock count can go up for a few reasons, and it look like it went up to 19 from cranking the motor, so you can disregard that. the rest look like they could be genuine knock...
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 685
Likes: 0
From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Re: My first ever datalog....
BPW never even gets converted from what i can see.
airflow looks like it's showing Hz instead of grams/sec, but that could be a good thing.
knock count can go up for a few reasons, and it look like it went up to 19 from cranking the motor, so you can disregard that. the rest look like they could be genuine knock...
airflow looks like it's showing Hz instead of grams/sec, but that could be a good thing.
knock count can go up for a few reasons, and it look like it went up to 19 from cranking the motor, so you can disregard that. the rest look like they could be genuine knock...
What is the BPW suppose to show me?
So it looks like the major things are:
-im running pretty much lean at anytime while im not idling.
-i have a knock at different points (my flexplate is cracked could that do it?) also, i started the data log after i had started the engine.
Anything else?
Also is there something on here that will spell out what each thing on the datalog means, such as BLM, Knock count etc. and also has whats an acceptable range for each one is?
Thanks again
Senior Member
Joined: Nov 2006
Posts: 672
Likes: 1
From: Camden, MI
Car: 1985 IROC-Z28
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.73
Re: My first ever datalog....
tuning with 160baud is kind of a pain... i thought that there was a 8192baud stream for that ECM?
BPW should show your injector pulse width, which at idle should be ~2mS.
i'm not a MAF expert so i can't tell you much about what to do other than that knock is likely real knock, which means your gas is bad, too much advance, your combustion chamber is full of carbon(essentially raising compression ratio), or a few other possible explanations, but i don't think a cracked flexplate would trigger the knock sensor.
there is a rather long reading for what most things mean in a datalog in one of the stickys...
BPW should show your injector pulse width, which at idle should be ~2mS.
i'm not a MAF expert so i can't tell you much about what to do other than that knock is likely real knock, which means your gas is bad, too much advance, your combustion chamber is full of carbon(essentially raising compression ratio), or a few other possible explanations, but i don't think a cracked flexplate would trigger the knock sensor.
there is a rather long reading for what most things mean in a datalog in one of the stickys...




