01-04-2017, 07:31 AM | #1 |
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JB4 issue.
I'm currently running a ER dp, intake, cp and JB4 on map 5 or 2. My issue is that I'm getting a very long delay before that JB4 "kicks in". If I do a run from a dig, it not until third gear before the boost really comes on and the fuel gage boost high jack shows boost. So basically first and second gear is stock. Zero boost limit set for the gears. If I run from 3rd gear it also take several seconds of "normal or stock boost" until the jb4 kicks in. I'm also having a logging issue and will only get very short logs that don't show enough data. I'm running the latest firmware and I'm pwg 93 octane. Any ideas
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01-04-2017, 07:52 AM | #3 |
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I had this issue as well. Check the boost by gear settings in the boost menu. Somehow mine got changed and the 1st and 2nd gear boost cap was set and I was getting stock boost in both of those gears
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01-06-2017, 03:54 PM | #6 |
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JB4 includes free pro tuning support so definitely take advantage of it. To do that record a longer log and post it to n54tech's support forum. The JB4 is the best and most flexible tuning system out for the F series but it's only as good as the car its being used on and its settings.
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01-06-2017, 04:39 PM | #7 | |
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BTW problems are almost always from user error, either bad install or change in the settings. We offer a ton of tunes, JB4 by far the most popular with a 14 days money back guarantee. Return rate is less than 1%
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01-06-2017, 04:40 PM | #8 | |
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01-06-2017, 04:43 PM | #10 | |
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Follow up the threads with issues and you will realize most of them are user error. I do think if BMS makes better install guide and include it with the Jb4 when shipped, we would see a lot less negative feedback
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01-06-2017, 06:39 PM | #11 | |
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01-06-2017, 06:53 PM | #12 | |
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This x100 I'm sure they could hire some random person on the internet to make it for them for like a few bucks too. Maybe even make a full video step-by-step idiot proof installation guide. |
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01-07-2017, 10:38 AM | #13 | |
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Drives: '13 F30 335i MSport
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01-07-2017, 12:23 PM | #14 |
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Agree 100%. There has been so many iterations of the JB4 versions and the install guide from BMS can be very confusing. A straight-forward video install guide would be very helpful and eliminate many "customer install errors". It's not fair to blame the customer every time there's an issue.
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01-07-2017, 12:38 PM | #15 |
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I've checked everything twice. Obdii dash control work, latest firmware installed, all connections checked. Happens on map 2 or 5. It's just very inconsistent when the jb4 bumps the boost. When it does boost right its pulls great but the inconsistency is driving me crazy.
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01-07-2017, 01:04 PM | #16 | |
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It's human nature to complain even at the slightest bit of dissatisfaction but it takes a great deal for someone to leave positive feedback. I for one am one of those happy customers. I love everything about it and I have no issues. But I didn't exactly post a positive review. If you don't like JB4 that's your opinion. You cannot deny that it is the most popular tune for our car though.
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01-07-2017, 01:14 PM | #17 | |
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01-07-2017, 01:18 PM | #18 | |
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01-07-2017, 01:39 PM | #20 | |
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Step2: Post log on BMS' support forum with a list of mods, fuel, and short description of issue Step3: BMS will help you resolve the problem Mike |
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01-08-2017, 09:17 AM | #21 |
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Yeah, I've sent logs but I'm also having a logging issue with the blue tooth connect logging short, choppy logs with not enough data.
I'm just looking for trouble shooting ideas or if anyone else had this issue? I've double checked everything and I'm very familiar with the proper JB4 setup. I seeems to be a JB4 software issue? Is there a JB4 system reset I could do? |
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01-08-2017, 10:11 PM | #22 | |
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