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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 08-11-2005, 07:38 PM
ChargedBMW ChargedBMW is offline
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Location: Scottsdale
 
Join Date: Aug 2005
Posts: 19
Mein Auto: Supercharged 330i, E38+31
Angry EML Trouble- Running RICH!!! Unichip?

I have a RMS supercharged 330i running about 3-4psi. The car has been running rich since the blower install.

I loaned out the car to a good buddy of mine and it came back with the EML and traction control lights on.

There is no consistancy as to when it comes on, nor do the codes make sense. I pulled the codes and they read:

(228) E4 Fuel trim bank 2
(227) E3 Fuel trim bank 1
(235) EB Trimming, O2 sensor
(246) F6 Flow Rate
(245) F5 Flow Rate
(225) E1 Trimming, O2 sensor
(211) D3 Idle speed control valve

*Most faults around 2750 RPM

It seems the more dense the air is, the longer it takes for the fault. Sometimes it codes within the first minute, sometimes 10 minutes.

Anyone with any experience tuning with the unichip? I need to lean this baby out...

PLEASE HELP!!!
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  #2  
Old 08-11-2005, 09:20 PM
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Fast Bob Fast Bob is online now
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Location: Here, there, everywhere....
 
Join Date: Jun 2004
Posts: 35,222
Mein Auto: 2004 330Ci ZHP 3 pedals
Who did the install/setup?I would think that initial calibrations *should* be on the rich side `til you start dialing things in....and how rich is "rich"? Have someone follow behind you and watch as you get on it hard....if you`re *that* rich, the extra unburned fuel will be ignited in the cat, and provide a nice little flame show for anyone following.

Regards,
Bob
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Old 08-11-2005, 09:30 PM
Mr Paddle.Shift Mr Paddle.Shift is offline
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Mein Auto: bmw
Erm...are those even SAE J1979 P-codes?

First time I heard of a 3~4psi kit running an E46 though.
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Old 08-12-2005, 01:32 AM
ChargedBMW ChargedBMW is offline
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Location: Scottsdale
 
Join Date: Aug 2005
Posts: 19
Mein Auto: Supercharged 330i, E38+31
It's running really rich, the check engine light has been on since the install. Those codes are bank 1 and bank 2 running rich.

I'm trying to install a piggyback ecu to lean it out and tune it properly. Has anyone had experience with piggyback ecu's? I heard the Apex'i and E-manage don't work at all.

I will send anyone the codes if they think they can help me with the EML prob. I can't spend too much more money on this car...

Thank for your help!
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