Help me read my datalog please Updated!

M3_Dylan · 06-23-2012, 12:06 PM

This is my first datalog and I have no idea what I am looking at so if something is wrong please let me know. Thank You

Mods
Stage 3 Procede Maps
5" ETS
BMS DCI
VRSF catless downpipes

rader1 · 06-23-2012, 12:12 PM

It looks like your fuel trims are maxxing out. You need to log/graph AFRs because I suspect you're running lean. Try bumping your OL fueling up to 85 and re-log. Other than that it looks OK.

M3_Dylan · 06-23-2012, 12:16 PM

Quote:

Originally Posted by rader1

It looks like your fuel trims are maxxing out. You need to log/graph AFRs because I suspect you're running lean. Try bumping your OL fueling up to 85 and re-log. Other than that it looks OK.

You mean CAN Actual AFR Bank 1 & CAN Actual AFR Bank 2 right? Because I did log them but they wont show up on the graph for some reason it just says 15.56. Any Advice

rader1 · 06-23-2012, 12:19 PM

Quote:

Originally Posted by spoiledxjoker

You mean CAN Actual AFR Bank 1 & CAN Actual AFR Bank 2 right? Because I did log them but they wont show up on the graph for some reason it just says 15.56. Any Advice

Yes those channels. I don't run the PROcede soon I can't tell you why they didn't log. I know I see a lot of logs where those channels don't show up.

M3_Dylan · 06-23-2012, 12:22 PM

Quote:

Originally Posted by rader1

Yes those channels. I don't run the PROcede soon I can't tell you why they didn't log. I know I see a lot of logs where those channels don't show up.

hmm guess ill have to call vishnu then, appreciate your help though sir.

jdbretz · 06-23-2012, 12:22 PM

Quote:

Originally Posted by spoiledxjoker

You mean CAN Actual AFR Bank 1 & CAN Actual AFR Bank 2 right? Because I did log them but they wont show up on the graph for some reason it just says 15.56. Any Advice

You will probably need to rescale them to get them to show up. Assign them in their own view window. Then on the lower left where your visible channels show up, highlight one bank at a time, press the "p" key to bring up that channels properties, and for your max set 15 and min 11 (or just choose autoscale). That will allow the trace to show up.

EDIT: Also your ignition is taking a nose dive at peak boost. This could be caused by the fuel trims maxing out though. Timing looks great towards the end of the run and appears to recover nicely all the way to redline.

enrita · 06-23-2012, 12:27 PM

Just right click on the channel in the column on the left and choose add to
Also use only map 1

M3_Dylan · 06-23-2012, 01:11 PM

So how bad are the AFR's?

rader1 · 06-23-2012, 01:21 PM

Quote:

Originally Posted by spoiledxjoker

So how bad are the AFR's?

Honestly, they look pretty good. There's some wonkyness while boost is ramping up and immediately after but it settles down after that. I still recommend bumping the OL up a bit to get the fuel trims down and get some wiggle room.

M3_Dylan · 06-23-2012, 01:25 PM

Quote:

Originally Posted by rader1

Honestly, they look pretty good. There's some wonkyness while boost is ramping up and immediately after but it settles down after that. I still recommend bumping the OL up a bit to get the fuel trims down and get some wiggle room.

My OL is currently set at 90 so should i move it to like 95?

rader1 · 06-23-2012, 01:35 PM

Quote:

Originally Posted by spoiledxjoker

My OL is currently set at 90 so should i move it to like 95?

Yeah, give it a try. I know a lot of guys run at 100.

M3_Dylan · 06-23-2012, 01:39 PM

Quote:

Originally Posted by rader1

Yeah, give it a try. I know a lot of guys run at 100.

Ill give it a shot, thanks

06-23-2012, 12:06 PM	#1
M3_Dylan Lieutenant 32 Rep 520 Posts Drives: 2008 BMW M3 Join Date: Sep 2011 Location: Orlando iTrader: (5)	Help me read my datalog please Updated! This is my first datalog and I have no idea what I am looking at so if something is wrong please let me know. Thank You Mods Stage 3 Procede Maps 5" ETS BMS DCI VRSF catless downpipes __________________ KW V3's / AA Stage 2 Supercharger / Catless Mid-pipes / AA Mufflers / Apex Arc-8's / PFC 09's Last edited by M3_Dylan; 06-23-2012 at 01:10 PM..
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06-23-2012, 12:12 PM	#2
rader1 Banned 71 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA iTrader: (0)	It looks like your fuel trims are maxxing out. You *need* to log/graph AFRs because I suspect you're running lean. Try bumping your OL fueling up to 85 and re-log. Other than that it looks OK.
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06-23-2012, 12:27 PM	#7
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Just right click on the channel in the column on the left and choose add to Also use only map 1 __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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06-23-2012, 01:11 PM	#8
M3_Dylan Lieutenant 32 Rep 520 Posts Drives: 2008 BMW M3 Join Date: Sep 2011 Location: Orlando iTrader: (5)	So how bad are the AFR's? __________________ KW V3's / AA Stage 2 Supercharger / Catless Mid-pipes / AA Mufflers / Apex Arc-8's / PFC 09's
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