N55 Real downpipe CEL fix in the works anywhere?

Vlaze · 08-23-2011, 11:29 AM

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?

christopherkriens · 08-23-2011, 11:49 AM

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

sluflyer06 · 08-23-2011, 12:07 PM

Quote:

Originally Posted by christopherkriens

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.

dicker · 08-23-2011, 01:00 PM

It won't pass emissions no matter what, there is no damn cat lol.

sluflyer06 · 08-23-2011, 01:25 PM

Quote:

Originally Posted by dicker

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

dicker · 08-23-2011, 01:50 PM

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.

sluflyer06 · 08-23-2011, 01:52 PM

Quote:

Originally Posted by dicker

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

.

dicker · 08-23-2011, 02:02 PM

Land of the free!

BostonBeemah · 10-12-2011, 09:37 AM

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

sluflyer06 · 10-12-2011, 09:54 AM

Auto-clears. You will not pass a OBDII emissions test with just the JB4.

Tech112 · 10-12-2011, 10:14 PM

The Auto Clear deletes all codes so you'll never know if something else is wrong.

BostonBeemah · 10-24-2011, 12:31 PM

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

ModBargains IV · 10-25-2011, 12:48 PM

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

08-23-2011, 11:29 AM	#1
Vlaze Private 4 Rep 50 Posts Drives: 2011 135i MT Join Date: Apr 2011 Location: St. Louis iTrader: (1)	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
christopherkriens . 18 Rep 260 Posts Drives: 2011 BMW 135i Coupé Join Date: Dec 2010 Location: Minnesota iTrader: (1) Garage List 2011 BMW 135i [8.62]	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, 01:00 PM	#4
dicker Captain 69 Rep 847 Posts Drives: F80 6MT Join Date: Apr 2008 Location: SoCal iTrader: (8)	It won't pass emissions no matter what, there is no damn cat lol.
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08-23-2011, 01:50 PM	#6
dicker Captain 69 Rep 847 Posts Drives: F80 6MT Join Date: Apr 2008 Location: SoCal iTrader: (8)	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, 02:02 PM	#8
dicker Captain 69 Rep 847 Posts Drives: F80 6MT Join Date: Apr 2008 Location: SoCal iTrader: (8)	Land of the free!
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10-12-2011, 09:37 AM	#9
BostonBeemah Lieutenant 72 Rep 524 Posts Drives: AW 135i 6spd Join Date: Sep 2011 Location: Belmont, Ma iTrader: (4)	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
sluflyer06 Private First Class 6 Rep 170 Posts Drives: 2008 135i MT Join Date: Jul 2011 Location: St. Louis, MO iTrader: (2)	Auto-clears. You will not pass a OBDII emissions test with just the JB4. __________________ 08' 135i MT \|\| Cobb Stage 1 'Aggressive' 4.01 Map \| BMS DCI \| Berk Mid Pipes \| Maddad Eurosport Axleback \| E93 FSB \| M-Sport Black on Black \| CDV Delete \|\|
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10-12-2011, 10:14 PM	#11
Tech112 New Member 0 Rep 25 Posts Drives: 2011 135i N55 DCT (sold) Join Date: Oct 2011 Location: Montreal iTrader: (0)	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
BostonBeemah Lieutenant 72 Rep 524 Posts Drives: AW 135i 6spd Join Date: Sep 2011 Location: Belmont, Ma iTrader: (4)	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 __________________ 2010 AW/BLK 135i VM 6465 Single Turbo, JB4 + MHD, VRSF CP & Tial, Big Tom, Fuel-It PI + Stage 3 + Return + Ethanol Sensor, BMW PE, MFactory LSD, Spec 3+ & MFactory SMFW, RB External PCV Best stock turbo 12.5 @ 19.46 spinning all the way down RIP 2008 AW/BL 135i
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10-25-2011, 12:48 PM	#13
ModBargains IV Second Lieutenant 13 Rep 213 Posts Drives: e92 335i, 135i, E46 M3, 540i Join Date: Sep 2011 Location: 1721 E. Lambert Rd. Unit C, La Habra, CA 90631 iTrader: (1)	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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