Please Help.

achi 3.0 · 09-22-2009, 09:01 PM

Hello,

i am from germany and i have a e93 335i. i have catless dp. and for the stock cat i have 200cells sportcats.

my problem is that after a few km the car goes to the limp mode.

what can i do to fiy the problem, becaus if i clear the limp mode the car goes after a few km again in?

sorry my english is not so good

please help.

psu139 · 09-22-2009, 09:12 PM

have you checked for error codes?

MFKN3 · 09-22-2009, 09:21 PM

Stating the obvious, but do you have a Procede piggyback or plugged in catless downpipe fix to allow your car to run without cats and not throw codes?

Sparky66 · 09-22-2009, 09:50 PM

If the car is displaying the Half Engine light and going into limp mode with reduced power, check that you didn't misplace and mixup the position of the 4 Oxygen sensors on your catless DP's.
If you are just triggering a CEL (Check Engine Light) without losing any power or driveability .....................you will need to fit a O2 Sim wired into your cars ECU. This should clear the CEL light and not continually return after a couple of km.

achi 3.0 · 09-23-2009, 05:28 AM

i think the problem is that i dont have any o2 sims in my dp the dp is handmade from f&f motorsport. can i by them separately.

Sparky66 · 09-23-2009, 07:00 AM

If you are talking about putting O2 Sensor extension bosses on your DP's to prevent any CEL's, don't waste your time. It's been proven many times on this forum that on the N54, they don't work.
Your best bet is to buy a wired in O2 sim like one sold by Burger Tuning:

Go here to buy:http://www.burgertuning.com/dpfix.html

Fitting instructions: http://www.burgertuning.com/instruct...ownpipefix.pdf

09-22-2009, 09:01 PM	#1
achi 3.0 Private First Class 24 Rep 104 Posts Drives: BMW M4 F83, Catless Dps, JB4 Join Date: Sep 2009 Location: Germany iTrader: (0)	Please Help. Hello, i am from germany and i have a e93 335i. i have catless dp. and for the stock cat i have 200cells sportcats. my problem is that after a few km the car goes to the limp mode. what can i do to fiy the problem, becaus if i clear the limp mode the car goes after a few km again in? sorry my english is not so good please help.
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09-22-2009, 09:12 PM	#2
psu139 First Lieutenant 24 Rep 340 Posts Drives: F10 M5 Join Date: Apr 2007 Location: Glenwood, MD iTrader: (1)	have you checked for error codes?
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09-22-2009, 09:21 PM	#3
MFKN3 Colonel 131 Rep 2,224 Posts Drives: supercharged 4.4L stroker E92 Join Date: Nov 2008 Location: Australia iTrader: (2)	Stating the obvious, but do you have a Procede piggyback or plugged in catless downpipe fix to allow your car to run without cats and not throw codes?
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09-22-2009, 09:50 PM	#4
Sparky66 Major 60 Rep 1,230 Posts Drives: 335 E92 Coupe. Jet Black. Join Date: Feb 2007 Location: Sydney, Australia iTrader: (0)	If the car is displaying the Half Engine light and going into limp mode with reduced power, check that you didn't misplace and mixup the position of the 4 Oxygen sensors on your catless DP's. If you are just triggering a CEL (Check Engine Light) without losing any power or driveability .....................you will need to fit a O2 Sim wired into your cars ECU. This should clear the CEL light and not continually return after a couple of km.
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09-23-2009, 05:28 AM	#5
achi 3.0 Private First Class 24 Rep 104 Posts Drives: BMW M4 F83, Catless Dps, JB4 Join Date: Sep 2009 Location: Germany iTrader: (0)	i think the problem is that i dont have any o2 sims in my dp the dp is handmade from f&f motorsport. can i by them separately.
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09-23-2009, 07:00 AM	#6
Sparky66 Major 60 Rep 1,230 Posts Drives: 335 E92 Coupe. Jet Black. Join Date: Feb 2007 Location: Sydney, Australia iTrader: (0)	If you are talking about putting O2 Sensor extension bosses on your DP's to prevent any CEL's, don't waste your time. It's been proven many times on this forum that on the N54, they don't work. Your best bet is to buy a wired in O2 sim like one sold by Burger Tuning: Go here to buy:http://www.burgertuning.com/dpfix.html Fitting instructions: http://www.burgertuning.com/instruct...ownpipefix.pdf
	Appreciate 0 Quote