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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 > how can i tell if i bout a jb4 not jb3



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      12-30-2012, 12:27 AM   #1
alexukie
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how can i tell if i bout a jb4 not jb3

ok so i bought a jb4 but cant plug it in my car because its 1000 miles away lol but anyway how can i tell? also came with usb cord.... i got it off cl..

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      12-30-2012, 01:30 AM   #2
jeveryday
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Im confused... 1000 miles away from what, and how can you tell what? What is CL?
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      12-30-2012, 01:58 AM   #3
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CL is probably Craigslist.

Idk how to help you without your being able to install it.
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      12-30-2012, 05:01 AM   #4
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The JB4 has a notably salty taste. See if it's salty. If not, JB3.
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      12-30-2012, 05:20 AM   #5
J02 335i
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Its a JB4, that red wire with a tie strap on it gives it away (middle, top of picture, to the left of the white connector).
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      12-30-2012, 09:28 AM   #6
JohnSprm69
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when you install it if you can change maps with the steering wheel controls then its a jb4.

if you have to change maps with the gas pedal then its a jb3


hope that helps.



jeveryday op is probably 1000 miles away from the car and "cl" its craigslist, also just in case "op" means original poster.
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      12-30-2012, 12:02 PM   #7
alexukie
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thank you everyone.. yeah it does have a extra red wire for the battery...
swoosh69 thanks for clearfying
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      12-30-2012, 02:05 PM   #8
pwebber37
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Quote:
Originally Posted by AndyR83 View Post
The JB4 has a notably salty taste. See if it's salty. If not, JB3.
hahahaha
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      12-30-2012, 10:17 PM   #9
jeveryday
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Quote:
Originally Posted by Swoosh69 View Post
when you install it if you can change maps with the steering wheel controls then its a jb4.

if you have to change maps with the gas pedal then its a jb3


hope that helps.



jeveryday op is probably 1000 miles away from the car and "cl" its craigslist, also just in case "op" means original poster.
LOL thanks man I was reading it like WTF
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      12-30-2012, 10:34 PM   #10
ntasia2000
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Quote:
Originally Posted by AndyR83 View Post
The JB4 has a notably salty taste. See if it's salty. If not, JB3.
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      12-30-2012, 10:38 PM   #11
Blaster335
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open it up look at the board if it had 2 white 18 ohm blocks on it its a jb4 if not jb3
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