EU2 tuning with stock set up?

hueyhy · 06-04-2012, 07:47 PM

I know that EU2 works without catalyst converter and SAP, but how about if I just re-flash the ECU to EU2 but don't do the hardware mods?
will there be any significant improvement or not?
will I run into problems?

thanks!

j_block · 06-04-2012, 07:49 PM

Quote:

Originally Posted by hueyhy

I know that EU2 works without catalyst converter and SAP, but how about if I just re-flash the ECU to EU2 but don't do the hardware mods?
will there be any significant improvement or not?
will I run into problems?

thanks!

Why

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Hornung418 · 06-04-2012, 07:56 PM

I don't believe that MS43 DMEs have a EU2 option...only EU3. I deleted my SAP and will be utilizing some of BimmerBrakes Headers as soon as he gets back with a good report for the Gen3 reps. I'm running MS42 EU2 and have zero issues. I haven't had to pass emissions or anything yet so it's no big deal for me until March 2013.

hueyhy · 06-04-2012, 08:00 PM

Quote:

Originally Posted by Hornung418

I don't believe that MS43 DMEs have a EU2 option...only EU3. I deleted my SAP and will be utilizing some of BimmerBrakes Headers as soon as he gets back with a good report for the Gen3 reps. I'm running MS42 EU2 and have zero issues. I haven't had to pass emissions or anything yet so it's no big deal for me until March 2013.

there's no emission inspection in FL either.
so you are running with stock header and EU2 without any issue? sounds great.
How about the performance? Does it really give some improvements you can feel?

hueyhy · 06-04-2012, 08:14 PM

Quote:

Originally Posted by Hornung418

I don't believe that MS43 DMEs have a EU2 option...only EU3. I deleted my SAP and will be utilizing some of BimmerBrakes Headers as soon as he gets back with a good report for the Gen3 reps. I'm running MS42 EU2 and have zero issues. I haven't had to pass emissions or anything yet so it's no big deal for me until March 2013.

http://bmwfans[/img] ** SPAM LINK BLOCKED ** Report this post to the moderators [img]parts/catalog/E4...me_programmed/

here, it shows a EU2 there.
BTW: is that "12 14 7 545 671" the thing am looking for? (my car is a 2002 330i, production date is Jan 2002.)

hueyhy · 06-04-2012, 08:47 PM

Confused after reading through some threads. Some say EU2 is mainly to delete the CEL lights for aftermarket headers. If don't have the mods, the EU spec tunings are not really making much different.
I think I will try to be safe and don't brick my DME

Iceman00 · 06-04-2012, 09:18 PM

Quote:

Originally Posted by hueyhy

Confused after reading through some threads. Some say EU2 is mainly to delete the CEL lights for aftermarket headers. If don't have the mods, the EU spec tunings are not really making much different.
I think I will try to be safe and don't brick my DME

Shark it.

daniel_f. · 06-05-2012, 04:30 AM

Quote:

Originally Posted by hueyhy

http://bmwfans[/img] ** SPAM LINK BLOCKED ** Report this post to the moderators [img]parts/catalog/E4...me_programmed/

here, it shows a EU2 there.
BTW: is that "12 14 7 545 671" the thing am looking for? (my car is a 2002 330i, production date is Jan 2002.)

Take winkfp and use zsb nummer "7 545 671", flash it, remove secondary air pump (or remove connector) and change part14 to part 13.

http://bmwfans[/img] ** SPAM LINK BLOCKED ** Report this post to the moderators [img]parts/catalog/E4...ttached_parts/

Or even better, use EU2 from Z3 3.0

JDUTHIE · 06-05-2012, 04:31 PM

doesnt the SAP help not burn up the cats by leaning out the exhaust on startup? So on a stock setup, this may/may not be a good thing?

fastjasonbmw · 06-05-2012, 08:53 PM

Where can we get the EU2 software?

Does this have it?

http://www.amazon.com/gp/aw/d/B0055BD4SO

E46_330i_Stud · 06-05-2012, 09:07 PM

Quote:

Originally Posted by JDUTHIE

doesnt the SAP help not burn up the cats by leaning out the exhaust on startup? So on a stock setup, this may/may not be a good thing?

Most people delete the sap because they have deleted the cats as well. No need for it anymore. I BELIEVE the SAP actually helps warm the cats up to lower emissions on cold starts BECAUSE the engine is running lean. Could be wrong.

daniel_f. · 06-06-2012, 08:23 AM

Quote:

Originally Posted by fastjasonbmw

Where can we get the EU2 software?

Does this have it?

http://www.amazon.com/gp/aw/d/B0055BD4SO

You need WinKFP and a usable obd interface.

fastjasonbmw · 06-06-2012, 08:06 PM

Quote:

Originally Posted by daniel_f.

You need WinKFP and a usable obd interface.

Thanks

sunnyjay · 06-07-2012, 09:34 AM

Engines run rich when they are cold to protect the engine. The sap purpose is to warm up the cat quickly to reduce tailpipe emissions.

On a side note, I had the eu2 tune on my 330ci. It ran perfectly fine on a completely stock m54b30. The reason being is because my sap fail.

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JDUTHIE · 06-07-2012, 04:33 PM

cool^ thanks for the info

sunnyjay · 08-04-2012, 09:28 AM

Quote:

Originally Posted by daniel_f.

Take winkfp and use zsb nummer "7 545 671", flash it, remove secondary air pump (or remove connector) and change part14 to part 13.

http://bmwfans[/img] ** SPAM LINK BLOCKED ** Report this post to the moderators [img]parts/catalog/E4...ttached_parts/

Or even better, use EU2 from Z3 3.0

what does part 14 and 13 do?

daniel_f. · 08-04-2012, 09:34 AM

it separates cylinder 1-3 and 4-6 from each other.

sunnyjay · 08-04-2012, 09:38 AM

is this a requirement to run eu2 tunes?

daniel_f. · 08-04-2012, 02:02 PM

well, as its supposed to be used and used in stock eu2 setup... i would go for it

sunnyjay · 08-04-2012, 03:03 PM

Quote:

Originally Posted by daniel_f.

well, as its supposed to be used and used in stock eu2 setup... i would go for it

sounds good, do you know if this bolt is a hex head or a regular bolt? also is it above the exhaust ports or below? Thanks

06-04-2012, 07:47 PM	#1
hueyhy Registered User Join Date: May 2012 Location: Orlando, FL Posts: 123 My Ride: E46 330i View My Garage	EU2 tuning with stock set up? I know that EU2 works without catalyst converter and SAP, but how about if I just re-flash the ECU to EU2 but don't do the hardware mods? will there be any significant improvement or not? will I run into problems? thanks!

06-04-2012, 07:56 PM	#3
Hornung418 Registered User Join Date: Dec 2010 Location: Bel Air, MD/ WVU Posts: 854 My Ride: 328/4/5 View My Garage	I don't believe that MS43 DMEs have a EU2 option...only EU3. I deleted my SAP and will be utilizing some of BimmerBrakes Headers as soon as he gets back with a good report for the Gen3 reps. I'm running MS42 EU2 and have zero issues. I haven't had to pass emissions or anything yet so it's no big deal for me until March 2013. __________________

06-05-2012, 08:53 PM	#10
fastjasonbmw Registered User Join Date: Sep 2011 Location: CO Posts: 231 My Ride: 330Xi View My Garage	Where can we get the EU2 software? Does this have it? http://www.amazon.com/gp/aw/d/B0055BD4SO __________________ http://bmwunderground.com BMW Videos

06-07-2012, 09:34 AM	#14
sunnyjay Registered User Join Date: Nov 2011 Location: USA Posts: 174 My Ride: 01 330i View My Garage	Engines run rich when they are cold to protect the engine. The sap purpose is to warm up the cat quickly to reduce tailpipe emissions. On a side note, I had the eu2 tune on my 330ci. It ran perfectly fine on a completely stock m54b30. The reason being is because my sap fail. Sent from my SGH-I897 using Bimmer App Last edited by sunnyjay; 06-07-2012 at 09:37 AM.

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06-04-2012, 08:47 PM	#6
hueyhy Registered User Join Date: May 2012 Location: Orlando, FL Posts: 123 My Ride: E46 330i View My Garage	Confused after reading through some threads. Some say EU2 is mainly to delete the CEL lights for aftermarket headers. If don't have the mods, the EU spec tunings are not really making much different. I think I will try to be safe and don't brick my DME

06-05-2012, 04:31 PM	#9
JDUTHIE Registered User Join Date: Oct 2009 Location: SEATTLE Posts: 362 My Ride: 2003 325xi View My Garage	doesnt the SAP help not burn up the cats by leaning out the exhaust on startup? So on a stock setup, this may/may not be a good thing?

06-07-2012, 04:33 PM	#15
JDUTHIE Registered User Join Date: Oct 2009 Location: SEATTLE Posts: 362 My Ride: 2003 325xi View My Garage	cool^ thanks for the info

08-04-2012, 09:34 AM	#17
daniel_f. Registered User Join Date: Jul 2011 Location: Germany Posts: 193 My Ride: 330iCA View My Garage	it separates cylinder 1-3 and 4-6 from each other.

08-04-2012, 09:38 AM	#18
sunnyjay Registered User Join Date: Nov 2011 Location: USA Posts: 174 My Ride: 01 330i View My Garage	is this a requirement to run eu2 tunes?

08-04-2012, 02:02 PM	#19
daniel_f. Registered User Join Date: Jul 2011 Location: Germany Posts: 193 My Ride: 330iCA View My Garage	well, as its supposed to be used and used in stock eu2 setup... i would go for it