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BMW 3-Series (E90 E92) Forum
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JB4 Install HELP
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| 04-12-2012, 04:37 AM | #1 |
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Private First Class
 
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JB4 Install HELP
Hello,
I am going to take the plunge and buy the JB4 and try to install it myself but any help would be greatful please Can anyone give me any tips or advice when installing the JB4? Thanks in advance Lee  |
| 04-12-2012, 04:44 AM | #2 |
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Colonel
 
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It seems daunting but it is actually quite straight forward.
Just take your time and it will be fine. Remember to run the USB cable through the firewall, this is the most fiddly part of the job but worth doing so you can code reads easily on the laptop. I used a Metal Coat hangar to push it through the hole. Are you installing dual cone intakes at the same time?
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Car: e91 330d with Viezu map
Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft) |
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| 04-12-2012, 05:35 AM | #3 |
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Major General
 
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Take your time, if you have a garage that's much better then you won't be rushed by impending rain!.
Get some good lighting as it can be a bit dark in that part of the engine bay too. Some small tools & tiny watchmakers style screwdrivers etc are handy for getting the connectors out of the ECU blocks. There's thread on here somewhere where I showed with pics how to get the USB lead into the car in 2010 (JB3 at that time but same thing) Read this thread: www.e90post.com/forums/showthread.php?t=425672 Post 32 has pics for USB lead. |
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| 04-12-2012, 06:03 AM | #4 |
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Private First Class
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Thanks for the tips and help. I will look at the pictures of installing the USB lead as really want that connected too
I will pick a day when its sunny as dont have a garage Will borrow some small tools too I have already instralled the DCI which was not too bad looking back |
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| 04-12-2012, 06:09 AM | #5 |
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Lieutenant Colonel
 
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Did you take the microfilter/cowl off to fit the DCIs?
If so, thats the main part of the installation anyway. Just remember the ECU is on the passenger side of the engine bay. Just be careful removing the ecu connectors and install the USB cable when the ECU has been disconnected as the ECU needs to be lifted out of the way as well as the plastic dividers. |
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| 04-12-2012, 06:33 AM | #6 |
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Major General
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+1 The instructions and install guide are from the US and the ECU is on the opposite side of the car for LHD!!
So watch references to 'drivers side' etc and remember its backwards to our cars. Watch the connector pins - they stick under your finger nails easily - my ECU compartment has the blood stains to prove it! When you've done it once you wonder what all the fuss what about! |
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| 04-12-2012, 07:05 AM | #7 | |
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Colonel
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Quote:
I keep meaning to do the 15ohm mod - but thats for another day!
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Car: e91 330d with Viezu map
Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft) |
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| 04-12-2012, 01:27 PM | #8 |
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Private First Class
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cheers again guys - have ordered the JB4 this aft and going to fit it over the weekend weather permitted. great site with good advice - going to save me £90 paying someone to fit!!!
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