Switching maps/ECU "learning" with JB4

pup73 · 03-22-2013, 07:41 AM

Hi guys,

I know this topic has been brought up before, but here we go...

I installed the JB4 PNP last week. I've been running map 5 since installation. My only other mod is a DCI. I use 93 octane gas. I have heard that the ECU needs to "learn" or adapt to the new maps. One way to do this is to do some WOT runs in 3rd/4th gear. Well, my 7 mile commute to work doesn't allow that

So i've been driving fairly conservatively since install.

I know want to try map 1. Is it ok to switch now, even though I haven't really put the car through a proper learning period? If I switch back to map 5, will it again have to "relearn" map 5? Am I just over thinking the issue???

Thanks for any info

-c

enrita · 03-22-2013, 08:00 AM

Yes , yes and yes

pup73 · 03-22-2013, 09:01 AM

Quote:

Originally Posted by enrita

Yes , yes and yes

Thank you x 3

Cali*335i · 03-24-2013, 02:34 AM

Quote:

Originally Posted by pup73

Hi guys,

I know this topic has been brought up before, but here we go...

I installed the JB4 PNP last week. I've been running map 5 since installation. My only other mod is a DCI. I use 93 octane gas. I have heard that the ECU needs to "learn" or adapt to the new maps. One way to do this is to do some WOT runs in 3rd/4th gear. Well, my 7 mile commute to work doesn't allow that

So i've been driving fairly conservatively since install.

I know want to try map 1. Is it ok to switch now, even though I haven't really put the car through a proper learning period? If I switch back to map 5, will it again have to "relearn" map 5? Am I just over thinking the issue???

Thanks for any info

-c

I am as well in the same boat just installed a couple days ago and I don't know really what map 1-7 means? Any way if some one shinny light on this. How do you log? Etc. I'm super new to this

MrRetep · 03-24-2013, 03:14 AM

Quote:

Originally Posted by Cali*335i

I am as well in the same boat just installed a couple days ago and I don't know really what map 1-7 means? Any way if some one shinny light on this. How do you log? Etc. I'm super new to this

click me

Cali*335i · 03-24-2013, 06:46 AM

Quote:

Originally Posted by MrRetep

click me

Thanks for the link I never thought to google it just thought if find it on here quickly...it was exactly what I was looking for

junitos · 04-05-2013, 02:11 AM

.

junitos · 04-05-2013, 02:16 AM

Quote:

Originally Posted by Cali*335i

Thanks for the link I never thought to google it just thought if find it on here quickly...it was exactly what I was looking for

do you have jb4 g5 or g4 ?

foghat · 04-05-2013, 08:55 AM

To quote Terry (JB4 designer):

"The JB4 is continuously learning. So, drive and enjoy. It will do its thing in the background based on the conditions its observing at that moment. You could spend a whole day doing full throttle runs but the moment it senses knock, air intake temperature changes, etc, it will change the tuning. So the notion that you need to "adaption runs" before map 5 runs properly is flawed because there is no proper way for map 5 to run. It's always going to be all over the place as things change. That is what auto learning and adaptive mapping is. Maximizing safe power output at any given moment during real world on road conditions."

Put it on map 5 and enjoy.

threethirtyfive · 04-07-2013, 11:24 AM

FBO, e85, map 5, Alpina flash. Hold on baby.

BEAR-AvHistory · 04-07-2013, 01:26 PM

The 3 quick 3rd gear runs just speeds up the process for WOT applications. Without them the car will learn slower but continues to learn.

Where the 3X3 runs are important is for those of us mixing E85 & its a good plan to do it on every tank. Run Map 1 to clear the system then 3X3 on Map 5 to reset it.

Good plan to also do it at the track if you buy some race fuel but not enough for a Map 7 run.

03-22-2013, 07:41 AM	#1
pup73 Lieutenant 520 Rep 542 Posts Drives: 2016 BMW M2 Join Date: Feb 2013 Location: Philadelphia iTrader: (0)	Switching maps/ECU "learning" with JB4 Hi guys, I know this topic has been brought up before, but here we go... I installed the JB4 PNP last week. I've been running map 5 since installation. My only other mod is a DCI. I use 93 octane gas. I have heard that the ECU needs to "learn" or adapt to the new maps. One way to do this is to do some WOT runs in 3rd/4th gear. Well, my 7 mile commute to work doesn't allow that So i've been driving fairly conservatively since install. I know want to try map 1. Is it ok to switch now, even though I haven't really put the car through a proper learning period? If I switch back to map 5, will it again have to "relearn" map 5? Am I just over thinking the issue??? Thanks for any info -c __________________ 2016 BMW M2/LBB/6MT/Exec Pkg 2009 Acura MDX-stock 2008 Acura RDX-stock 2005 Honda S2000-mostly stock 1994 Nissan 300ZX Twin Turbo-barely stock
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03-22-2013, 08:00 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Yes , yes and yes
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04-05-2013, 02:11 AM	#7
junitos Banned 27 Rep 385 Posts Drives: T0PL3SS BIMM3R Join Date: Nov 2012 Location: VVest Coast iTrader: (1)	. Attached Images
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04-05-2013, 08:55 AM	#9
foghat Captain 59 Rep 913 Posts Drives: 2008 135i Join Date: Jun 2009 Location: Great White North iTrader: (1)	To quote Terry (JB4 designer): "The JB4 is continuously learning. So, drive and enjoy. It will do its thing in the background based on the conditions its observing at that moment. You could spend a whole day doing full throttle runs but the moment it senses knock, air intake temperature changes, etc, it will change the tuning. So the notion that you need to "adaption runs" before map 5 runs properly is flawed because there is no proper way for map 5 to run. It's always going to be all over the place as things change. That is what auto learning and adaptive mapping is. Maximizing safe power output at any given moment during real world on road conditions." Put it on map 5 and enjoy.
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04-07-2013, 11:24 AM	#10
threethirtyfive Banned 13 Rep 156 Posts Drives: '07 E90 335, '04 R32 Join Date: Jan 2013 Location: Austin, TX iTrader: (1) Garage List 2007 BMW 335i Sedan [0.00]	FBO, e85, map 5, Alpina flash. Hold on baby.
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04-07-2013, 01:26 PM	#11
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3131 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	The 3 quick 3rd gear runs just speeds up the process for WOT applications. Without them the car will learn slower but continues to learn. Where the 3X3 runs are important is for those of us mixing E85 & its a good plan to do it on every tank. Run Map 1 to clear the system then 3X3 on Map 5 to reset it. Good plan to also do it at the track if you buy some race fuel but not enough for a Map 7 run. __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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