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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Finally JB4 G5,e85 yes,no?



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      02-07-2013, 01:41 PM   #23
preezzy
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Originally Posted by Boosted1111
I agree Ill most likely go with new BMS, Okay guys help me out I just got my JB4 G5 in the mail today, My brother and I are going to install it but on the DYI video it does not show how to install this new red cord. with two small connectors at the end. Also there is a black box that the jb4 connects to but where do I install that at the bottom of the PCM? the video is good but doesnt show these parts in. please help
Red cable would be the power cable which connects to the orange wire in your ecu u have to unhook the orange wire from ecu power amp then connect the red jb4 cable to the green connector where u unhooked the orange cable from and the other side of red cable goes in to the unhooked orange cable! Hope this helps
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      02-07-2013, 01:44 PM   #24
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If you need any further help pm for my number and I can walk you through the install if your doing it now
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      02-07-2013, 03:58 PM   #25
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Well the jb4 is installed we are finishing up looking over a few things I didnt ,disconnect the battery.. her is how i did the power wire http://www.n54tech.com/forums/showthread.php?t=10880
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      02-07-2013, 03:59 PM   #26
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A clip broke on the green connector that hold the connector in place but it doesnt seem to be an issue the clip is still in place good.
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      02-07-2013, 04:07 PM   #27
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Okay,the JB4 is connected should I see if the car starts before I put everything else back on?
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      02-07-2013, 04:23 PM   #28
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I've broke few lol mine and others that I have installed for but its not a big deal at all everything should still go back to its place and fit perfectly
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      02-07-2013, 04:24 PM   #29
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Okay Jb4 is in and first start went well, so its already on map 1? I am running 91 octane gas, so if its already on map 1 ill keep it on map 1 for a few days to let the car get use to the new tune. I have no error lights and no other issues upon start. everything went smooth. so assuming I am already on map one ill drive it around for a while then go wot.. is there anything I need to check or look for while driving, also Im at half tank of gas i am going to put about 1.2 gallons of e85 and switch to map 5 at some point to see how she runs.... are octane boosters recommended? or is that a big no no ? thanks again-denise
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      02-07-2013, 05:42 PM   #30
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happy with the car =)
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      02-07-2013, 05:49 PM   #31
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Wot time .

Last edited by DJB335i; 02-14-2013 at 01:15 PM.
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      02-07-2013, 10:56 PM   #32
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Forget about the octane booster. Put 30% E85 in it and set global boost to 18. Floor it in 3rd 2-3 times to redline. Then log another run in 3rd and post a picture. You want the trims line not to max out. Also turn on gauge hijacking with stealth to see boost pressure and IAT on oil when you floor it.

Also is this a G5 or G5 iso? If it isn't ISO, convert it. Load firmware 16B, its the best.
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