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      07-04-2012, 07:13 AM   #1
kushtrim
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Jb4 help

Been getting a service engine soon light every time I push she car a bit hard and engine starts making a lauder noise when I delete the codes it stops and light is gone . I tried it with the jb4 turned of and car runs good no problem no matter how hard I push the car . Any idea why this is happening ??? Any help is appreciated !!! Thx
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      07-04-2012, 07:56 AM   #2
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read the codes.... sounds like a missfire.
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      07-04-2012, 07:56 AM   #3
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What code?
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      07-04-2012, 08:20 AM   #4
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Don't know how to read them , am bad with that stuff :
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      07-04-2012, 08:30 AM   #5
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Quote:
Originally Posted by kushtrim View Post
Don't know how to read them , am bad with that stuff :
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      07-04-2012, 08:52 AM   #6
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hook up your laptop connect jb4 program go to settings tab and click on read codes.
or read above chart and do it with steering wheel controls......... laptop is easier
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      07-04-2012, 09:09 AM   #7
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Quote:
Originally Posted by enrita View Post
read the codes.... sounds like a missfire.
+1

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      07-04-2012, 09:10 AM   #8
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Quote:
Originally Posted by kushtrim View Post
Don't know how to read them , am bad with that stuff :
Instructions for in dash code reading...

http://www.e90post.com/forums/showthread.php?t=517332

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      07-04-2012, 12:52 PM   #9
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Thx a lot for your help guys , I will try it later on after work and see what it says .
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      07-04-2012, 01:50 PM   #10
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If your JB4 is the latest software than the SES light is a built in indicator. It was flashing right? If so then how many times? Two flashes is a run lean safety and four is an over boost safety. Read the 6/10 changes on this page:

http://www.n54tech.com/forums/showthread.php?t=10605
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      07-04-2012, 02:12 PM   #11
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Quote:
Originally Posted by psmitty95
If your JB4 is the latest software than the SES light is a built in indicator. It was flashing right? If so then how many times? Two flashes is a run lean safety and four is an over boost safety. Read the 6/10 changes on this page:

http://www.n54tech.com/forums/showthread.php?t=10605
My jb4 was never updated , the service engine light stays on till I delete the code then it gone .
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      07-04-2012, 03:55 PM   #12
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Quote:
Originally Posted by kushtrim
Quote:
Originally Posted by psmitty95
If your JB4 is the latest software than the SES light is a built in indicator. It was flashing right? If so then how many times? Two flashes is a run lean safety and four is an over boost safety. Read the 6/10 changes on this page:

http://www.n54tech.com/forums/showthread.php?t=10605
My jb4 was never updated , the service engine light stays on till I delete the code then it gone .
change ur plugs shqipe
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      07-04-2012, 04:05 PM   #13
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Quote:
Originally Posted by gzim335
Quote:
Originally Posted by kushtrim
Quote:
Originally Posted by psmitty95
If your JB4 is the latest software than the SES light is a built in indicator. It was flashing right? If so then how many times? Two flashes is a run lean safety and four is an over boost safety. Read the 6/10 changes on this page:

http://www.n54tech.com/forums/showthread.php?t=10605
My jb4 was never updated , the service engine light stays on till I delete the code then it gone .
change ur plugs shqipe
That's what I was thinking too , thx shqipe
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      07-04-2012, 06:28 PM   #14
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Shqipe, if you need a BT tool to scan it i'm in queens stop by anytime.
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      07-04-2012, 06:50 PM   #15
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Shqipe, if you need a BT tool to scan it i'm in queens stop by anytime.
thx a lot bro , i have the usb cable i just dont know how to work with it
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      07-05-2012, 09:49 PM   #16
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I've been getting the same exact problem. Everytime I floor the car on the highway with my JB4 on map 1....check engine light goes on (stays on, no blinking), the car still runs but the engine shakes as I press the gas. The light disappears when I turn off the car and put it back on.

I was thinking it was the HPFP, I went to my local garage and they attached the error coding system but they couldn't find the error code. I tried driving it hard with the JB4 turned off to see if the light would appear, but it stayed off.

Really want a solution for this! Hate to have a JB4 that is not functional!
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      07-05-2012, 09:54 PM   #17
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hey kush! its nick with the white sedan 335i, you should def change your plugs and or coilpacks. i also had a similar problem (but jb3) and changed my plugs and it was all good!
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      07-05-2012, 10:39 PM   #18
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Quote:
Originally Posted by leungsta View Post
I've been getting the same exact problem. Everytime I floor the car on the highway with my JB4 on map 1....check engine light goes on (stays on, no blinking), the car still runs but the engine shakes as I press the gas. The light disappears when I turn off the car and put it back on.

I was thinking it was the HPFP, I went to my local garage and they attached the error coding system but they couldn't find the error code. I tried driving it hard with the JB4 turned off to see if the light would appear, but it stayed off.

Really want a solution for this! Hate to have a JB4 that is not functional!
yup thats the same thing that happens to me , its annoying really need this fixt

Quote:
Originally Posted by idrift4wd View Post
hey kush! its nick with the white sedan 335i, you should def change your plugs and or coilpacks. i also had a similar problem (but jb3) and changed my plugs and it was all good!
hey bro,yea i will deff do that. where did you get yours changed ?
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      07-06-2012, 07:27 AM   #19
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I'll subscribe to this thread and do some research....keep me posted if you find a fix !
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      07-06-2012, 09:42 AM   #20
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Quote:
Originally Posted by leungsta View Post
I've been getting the same exact problem. Everytime I floor the car on the highway with my JB4 on map 1....check engine light goes on (stays on, no blinking), the car still runs but the engine shakes as I press the gas. The light disappears when I turn off the car and put it back on.

I was thinking it was the HPFP, I went to my local garage and they attached the error coding system but they couldn't find the error code. I tried driving it hard with the JB4 turned off to see if the light would appear, but it stayed off.

Really want a solution for this! Hate to have a JB4 that is not functional!

Do you have auto code clear on? If you do the code may be getting erased, so turn that off to read the code.

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      07-07-2012, 10:17 AM   #21
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How would I turn it off?
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      07-15-2012, 10:53 PM   #22
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This needs a bump...won't be using my jb4 until I find a solution to this
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