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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > JB4 randomly went into Map 4 twice?
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      01-16-2020, 11:21 PM   #1
giacMeister
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JB4 randomly went into Map 4 twice?

So I have my JB4 on Map 5 all of the time, and as far as other mods go I have a catless DP and CP. I think it kicked me in Map 4 because I did a pull in Sport mode in D(I usually manually shift it myself cause it's fun and I like the burples) and was hovering above 4500 RPMs for more than 1 second while letting off the throttle at high rpms. So maybe I'm just overthinking it but here are some logs. I'm not good at reading them so maybe someone can help me out and tell me if something looks funky? I think when you let off the throttle it naturally has a high AFR so maybe it thought I was running lean for a second? Thanks in advance.

https://datazap.me/u/giacdaddy/map5p...ta=1-4-9-18-19

Last edited by giacMeister; 01-17-2020 at 12:49 AM.. Reason: Updated log to use datazap
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      01-17-2020, 12:31 AM   #2
thejeremyman9
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No one is really going to look at a log like that. Please upload to datazap or something.
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      01-17-2020, 12:49 AM   #3
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My bad. Updated
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      01-17-2020, 01:37 AM   #4
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try to take a log at WOT, usually 4th gear in auto and 3rd in a manual, with dtc+dsc off (sport+ mode and then hold the traction button for 5 seconds). your going to want to roll at 2,500-3,000 rpm and stop at 6,000-6,500. I would also check your oil level to make sure your not running low before doing a few pulls to redline, usually you get a warning when you reach a quart low but I always check and add that half quart or more if needed before doing a few logs but maybe that's just me..
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      01-17-2020, 01:39 AM   #5
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Okay I'll do that and post back here. I haven't ever tried to do a proper log before so thank you for pointing out what I should do. Much appreciated.
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