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      08-23-2011, 11:29 AM   #1
Vlaze
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N55 Real downpipe CEL fix in the works anywhere?

Currently have a JB3 with a Berk Downpipe. I know the CANbus tool can delete the code, but the N54 actually has a real downpipe fix so that no lights ever get thrown to delete.

Anyone know if there is a real downpipe fix in the works for the N55?
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      08-23-2011, 11:49 AM   #2
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I believe the N55 Stage 2 (JB4) will automatically discard codes related to exhaust modifications like the current N54 JB4.

I think it's being beta tested, most up-to-date details are here:
http://n54tech.com/forums/showthread.php?t=13189
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      08-23-2011, 12:07 PM   #3
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Quote:
Originally Posted by christopherkriens View Post
I believe the N55 Stage 2 (JB4) will automatically discard codes related to exhaust modifications like the current N54 JB4.

I think it's being beta tested, most up-to-date details are here:
http://n54tech.com/forums/showthread.php?t=13189
Right, but that isn't a DPfix, it just clears out codes. A real fix means the car never gets a code to delete and would pass a OBD2 emissions test like the BMS DPfix part.

A catless car running a JB4 alone will not pass a OBD2 emissions inspection.
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      08-23-2011, 01:00 PM   #4
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It won't pass emissions no matter what, there is no damn cat lol.
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      08-23-2011, 01:25 PM   #5
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Quote:
Originally Posted by dicker View Post
It won't pass emissions no matter what, there is no damn cat lol.
yes it will pass for any state that does a OBDII emissions test with a true DPfix (ala BMS N54 fix). Neither I nor Vlaze lives in California
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      08-23-2011, 01:50 PM   #6
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Do they just plug into your OBD-II port and that's it?

In CA they put you on a dyno and stick a probe up your poor cars exhaust.
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      08-23-2011, 01:52 PM   #7
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Quote:
Originally Posted by dicker View Post
Do they just plug into your OBD-II port and that's it?

In CA they put you on a dyno and stick a probe up your poor cars exhaust.
Thats all .
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      08-23-2011, 02:02 PM   #8
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Land of the free!
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      10-12-2011, 09:37 AM   #9
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sorry for bringing up an old thread but im just wondering if the JB4 tune has a true downpipe fix or if it just deletes the light off the dash?? I live in Massachusetts where they dont probe. They just do the OBD test so i am a little confused whether or not i can pass with just the tune and no BMS dp fix..

Thanks guys
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      10-12-2011, 09:54 AM   #10
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Auto-clears. You will not pass a OBDII emissions test with just the JB4.
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      10-12-2011, 10:14 PM   #11
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The Auto Clear deletes all codes so you'll never know if something else is wrong.
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      10-24-2011, 12:31 PM   #12
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ok so i have a catless dp now and im planning on getting jb4.. either way i need the BMS dpfix?? thats the only thing i was unclear on... Thanks again
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      10-25-2011, 12:48 PM   #13
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If you have an N55, your only two options are to get a:

CANTOOL or upgrade your JB3 N55 to a JB4 N55 Stage 2.

It's not a fix necessarily as it will only remove the annoying SES light on your dash.

-Frank
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