E85 boosting high

Bambi21 · 01-29-2017, 01:52 AM

I have a 335i n54 stock turbos with jb4, dci, catless, and 30% e85 I'm running map 5 and with the jb4 boost gauge (fuel gauge) I usually get 14 psi which is 3/4 of the fuel gauge but after putting exit for the first time my boost gauge shot up to full tank on WOT the next morning I did another WOT and it put me on map 4 is this normal?

GeneralMitch · 01-30-2017, 06:50 AM

Usually when JB4 switches map for you, it's as a fail safe mode.
Have you got the logging cable?
Maybe hook it up to a laptop and see whats bugging it out?

GM

01-29-2017, 01:52 AM	#1
Bambi21 New Member 0 Rep 5 Posts Drives: E90 2007 335i Join Date: Jan 2017 Location: Sacramento, Ca iTrader: (0) Garage List 2007 BMW 335i [0.00]	E85 boosting high I have a 335i n54 stock turbos with jb4, dci, catless, and 30% e85 I'm running map 5 and with the jb4 boost gauge (fuel gauge) I usually get 14 psi which is 3/4 of the fuel gauge but after putting exit for the first time my boost gauge shot up to full tank on WOT the next morning I did another WOT and it put me on map 4 is this normal?
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01-30-2017, 06:50 AM	#2
GeneralMitch Private First Class 12 Rep 111 Posts Drives: 335i N54 Saloon Join Date: May 2016 Location: East London iTrader: (0)	Usually when JB4 switches map for you, it's as a fail safe mode. Have you got the logging cable? Maybe hook it up to a laptop and see whats bugging it out? GM
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