06-19-2017, 10:06 AM | #1 |
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BMW 1M Cobb Logs
Hey guys,
I don't really know how to read logs and interpret the numbers associated with each parameter. It would be great if someone would check my logs out and inform me whether they look healthy or not (COBB AP was used for logging) The car feels hesitant sometimes under acceleration, I haven't change the plugs and coils in a long time but plan on doing so very soon. I have my mods listed in the signature and the ambient temperature outside today was 98f (very humid too) I did 2 pulls ~30 mins apart and couldn't take it further than ~5800 rpm as I ran out of road Any help is greatly appreciated
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BSM 1M, H&R Adjustable Coilovers, Sachs Ceramic Racing Clutch, Aquamist 50/50 Meth Injection, MHD Custom Tune, VRSF Inlets, Cobb Intercooler, Cobb High Flow Downpipes, Cobb Chargpipe, Meisterschaft Axle-back, Magnaflow Midpipe
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06-19-2017, 01:21 PM | #2 |
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Guessing here, but check your Lambda values (bank 1 and 2). I believe this indicates fuel pressure. They should return to a nominal value when off throttle. If these are off it could indicated injector or pump related problems?
For comparison I show 235.2 off throttle and ~13.5 WOT. Good luck, Dave
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06-19-2017, 01:36 PM | #4 | |
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06-19-2017, 01:46 PM | #5 |
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I should've used Datazap from the beginning it's much better and it should make it easier for you guys to view the logs
Here's the link: http://www.datazap.me/u/aalfayez/log...4-5-6-7-8-9-14
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BSM 1M, H&R Adjustable Coilovers, Sachs Ceramic Racing Clutch, Aquamist 50/50 Meth Injection, MHD Custom Tune, VRSF Inlets, Cobb Intercooler, Cobb High Flow Downpipes, Cobb Chargpipe, Meisterschaft Axle-back, Magnaflow Midpipe
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06-19-2017, 08:16 PM | #6 | |
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06-19-2017, 10:55 PM | #7 | |
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06-20-2017, 10:55 PM | #9 |
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I am not able to read my own logs very well, especially for trouble shooting, sorry.
Having said that, can you describe the hesitation better? Do you have any codes? Misfires don't always throw codes, but if you have the codes it would help. Are you on the original injectors? |
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06-20-2017, 11:07 PM | #10 | |
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I'm still on stock injectors |
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06-21-2017, 08:37 AM | #11 | |
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Then I went with a custom tune and it was night and day!
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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06-21-2017, 09:52 AM | #12 | |
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Second, as you mentioned, is that my car doesn't really like my current map too much. I'm going to switch over to MHD soon and get a custom tune so I think that would help a lot power and driveability wise. What tune do you have on your car? |
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06-21-2017, 06:49 PM | #13 |
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See Sig.
BuraQ can tune using your logs via email with either MHD or Cobb. It may be worth reaching out to him before paying for MHD. There are many advantages to MHD, but I stayed with Cobb because I like the device itself and am 100% IOS, so I would have had to buy an android device just to use MHD and it never quite seemed worth it to me.
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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06-21-2017, 07:13 PM | #14 |
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Agreed. BQ seems to have better (less iterative) results with Cobb, but can do some nice things with MHD as well. Might as well try working with Cobb if you already have it.
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06-21-2017, 11:03 PM | #15 |
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I'm usually on my phone so I can't see signatures unless I go to your page. I'm still trying to get used to this website
I think I'm going to switch to mhd anyway as it has more features. I'll install everything and contact Buraq to see what we can do. |
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