Jb4 help

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dan_88
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Location: Derbyshire

Jb4 help

Post by dan_88 » Wed Jul 26, 2017 10:37 pm

I have recently fitted a jb4 and have recently done a log. Ive noticed that the target boost in third is only 11 psi but when I shift to 4th it goes up to 14.5. I've checked the boost by gears settings and they are all set at 0.0 which should deactivate it. Any ideas?
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Some kind of bmw

Caddyroo
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Re: Jb4 help

Post by Caddyroo » Thu Jul 27, 2017 9:05 am

My map 5 targets 12 psi in third. Seems fine to me

Sorry I just checked and I do actually have a boost limit in third. At 12 obviously.

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M235i - MPerformance Aero Package - MPE
JB4 - MPS4S - HRE Springs - Spacers - BCS Sport Cat

Caddyroo
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Re: Jb4 help

Post by Caddyroo » Thu Jul 27, 2017 9:14 am

Could you upload your CSV, ill have a more in depth look.
M235i - MPerformance Aero Package - MPE
JB4 - MPS4S - HRE Springs - Spacers - BCS Sport Cat

dan_88
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Posts: 351
Joined: Sun Oct 23, 2011 7:30 pm
Location: Derbyshire

Re: Jb4 help

Post by dan_88 » Thu Jul 27, 2017 5:27 pm

I tried to upload any csv nut it wouldn't allow. I have now downloaded the latest jb4 interface and when I plugged in the jb4 3rd gear boost was set to 1.0 I have changed that so will have another go
Some kind of bmw

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