Tuneless header CEL fix for ///Ms.

Juice84 · 07-20-2010, 09:21 AM

Quote:

Originally Posted by inTgr8r

Unless I missed something recent;
Kav welded bungs into his exhaust pipes after the sec cats (N.Amer)

CR did the same thing in his build thread.

kav · 07-20-2010, 01:03 PM

Yup, after installing the Euro header I installed the secondary O2 sensors behind the secondary cats. I had problems initally when the shop I used cut the wires to extend them. I repalced both sensors and just unfolded the wiring harness out to length and it has been running great with no CEL!

O-cha · 07-20-2010, 01:20 PM

Quote:

Originally Posted by Jbs

O-cha, any updates on this? I'm very interested!

I have gathered that, as of now, your sim makes the car run like it is supposed to with the headers, but it still has an SES light. Thank you for offering an alternative to a $1000 tune!

Unfortunately no updates. UPS screwed up pretty bad and I've been out of town for a month which delayed fixing their screw up.

DarkstarZero · 07-20-2010, 06:52 PM

The problem with relocating the O2s is that it wont go over well if you ever want to return the car to stock and sell it. On a trade in or private sell, they're going to want to replace the cut up and modified 2nd cat which can cost at least a grand or two.

I don't know if I'm keeping the car for a long time or not so sims are the best option for me as they'll probably save me a lot of money down the road.

DarkstarZero · 08-04-2010, 01:43 AM

Good news guys - I installed the latest O-Cha sim. I haven't had any time to get the code cleared because I've been very very busy but after a few hundred miles, the code cleared itself and hasn't come back! No more SES light, no codes, It's working flawlessly! The engine seems a little happier too.

Nate2046 · 08-04-2010, 07:20 AM

Really? That's great, maybe I won't be removing my headers after all. I'll have to get in touch with O-cha about replacing my sim with the new one.

O-cha · 08-06-2010, 09:17 PM

Quote:

Originally Posted by DarkstarZero

Good news guys - I installed the latest O-Cha sim. I haven't had any time to get the code cleared because I've been very very busy but after a few hundred miles, the code cleared itself and hasn't come back! No more SES light, no codes, It's working flawlessly! The engine seems a little happier too.

That's good news, Reason to be optimistic at this point but not certain. It's hard to nail this one down just yet. I still haven't gotten the code to come back on mine and you got yours so quickly and repeatedly that I think there might be considerable car to car variance.

Nate I'll send send one to you when after a bit of feedback from darkstar but keep in mind while you had the code that we are talking about you also had codes that indicate a bad O2 sensor and should not be there.

Nate2046 · 08-06-2010, 11:35 PM

Quote:

Originally Posted by O-cha

Nate I'll send send one to you when after a bit of feedback from darkstar but keep in mind while you had the code that we are talking about you also had codes that indicate a bad O2 sensor and should not be there.

Ok, however you think works best. I have a new o2 sensor that I was planning to install when I removed the headers and the sim, going back to stock. Obviously would be much easier to replace the sensor and the new sim if you thought that would solve the issue. I could go ahead and do the sensor replacement now if you think that would be a better diagnostic with the new sim. Let me know. Thanks

p.s. keep in mind I drive the car ~300 miles a week highway so I'm a good source for feedback on this

Nate2046 · 08-17-2010, 11:01 AM

Any updates on this? I'd really like to move forward on either removing my headers and the non-functioning sim or replacing it with a working one. I'm getting annoyed staring at the ses light.

mfanatic325 · 08-22-2010, 09:20 PM

I'm going to be trying out Ebay headers soon (since some of my E46 M3 friends have them installed with success). Is there any update for this sim? I tried PM-ing O-Cha, but haven't received a reply as of yet

O-cha · 08-23-2010, 01:46 PM

Time and mileage is what's needed, I don't want there to be any more issues, but its getting there.

Nate2046 · 08-23-2010, 05:24 PM

I've put over 6000 miles on the original sim design. Would love to get my hands on the new one ASAP

O-cha · 08-23-2010, 06:38 PM

Quote:

Originally Posted by Nate2046

I've put over 6000 miles on the original sim design. Would love to get my hands on the new one ASAP

Darkstar just let me know that the codes come back from time to time but then reset themselves ~100 miles later. It means a step in the right direction but not there yet.

The reason I'm only working with one person is it's difficult to make prototypes, but once it's hammered down one will go straight to you.

Going to get some more components.

Nate2046 · 08-23-2010, 08:38 PM

Cool, thanks for the update. Glad to see you're getting it dialed in.

mfanatic325 · 08-23-2010, 09:08 PM

Could I join in the testing phase as well perhaps at cost? I'm truly interested, as I already ordered my Ebay headers, and I've already installed on an S54 motor before, so I'm probably going to get this installed as soon as I can. But, I'd need the peace of mind to get the car running right afterwards

Nate2046 · 09-16-2010, 11:38 PM

So, its been like a month and a half, any update? I'm going to be taking my car in for service fairly soon and I really want the code cleared before I do. Its either going to have to be the new sim or removal of the old along with the headers.

Nate2046 · 10-04-2010, 11:14 PM

Trying to be patient here..............any updates?

O-cha · 10-04-2010, 11:39 PM

No and I think darkstars planning on getting a flash. It's an extremely difficult thing to do remotely without my tools, so I think without someone local I won't do it. Don't want to put anyone else through the frustration.

3002 tii · 10-20-2010, 10:35 AM

that sucks, continue to update please. i'd like to get headers in the future but alot of it depends on this mod. i know AA just released a tune for the n52 (not expecting huge gains but if this is something they can incorporate, then it might be worth it...)

DarkstarZero · 10-20-2010, 11:54 AM

I got the ESS flash but asked them to not disable the O2s so I'm still tinkering with the sim. I've got an idea of how to get it so the readings are just right, I just have to tweek the sim and clear codes every other week until I find that magic setting. It's a long process but I'll let you guys know once I hit 1000 miles with no codes.

kav · 10-20-2010, 05:36 PM

The SIM definintely has a role. But so far no CEL after relocating O2 sims behind secondary cats.

O-cha · 10-20-2010, 07:06 PM

Quote:

Originally Posted by DarkstarZero

I got the ESS flash but asked them to not disable the O2s so I'm still tinkering with the sim. I've got an idea of how to get it so the readings are just right, I just have to tweek the sim and clear codes every other week until I find that magic setting. It's a long process but I'll let you guys know once I hit 1000 miles with no codes.

Pm me the codes you are still getting, are you swinging between the two?

07-20-2010, 01:03 PM	#68
kav Lieutenant 49 Rep 401 Posts Drives: Z4M Join Date: Oct 2007 Location: Canada iTrader: (1)	Yup, after installing the Euro header I installed the secondary O2 sensors behind the secondary cats. I had problems initally when the shop I used cut the wires to extend them. I repalced both sensors and just unfolded the wiring harness out to length and it has been running great with no CEL!
	Appreciate 0 Quote

07-20-2010, 06:52 PM	#70
DarkstarZero Lieutenant Colonel 1014 Rep 1,721 Posts Drives: Daytona 95 M3, X7 M50, e92 M3, Join Date: Nov 2007 Location: Washington DC iTrader: (6)	The problem with relocating the O2s is that it wont go over well if you ever want to return the car to stock and sell it. On a trade in or private sell, they're going to want to replace the cut up and modified 2nd cat which can cost at least a grand or two. I don't know if I'm keeping the car for a long time or not so sims are the best option for me as they'll probably save me a lot of money down the road. __________________ BMW CCA Track Instructor Join to win a M School Day at the Performance Center! Enter Referral ID: 420186
	Appreciate 0 Quote

08-04-2010, 01:43 AM	#71
DarkstarZero Lieutenant Colonel 1014 Rep 1,721 Posts Drives: Daytona 95 M3, X7 M50, e92 M3, Join Date: Nov 2007 Location: Washington DC iTrader: (6)	Good news guys - I installed the latest O-Cha sim. I haven't had any time to get the code cleared because I've been very very busy but after a few hundred miles, the code cleared itself and hasn't come back! No more SES light, no codes, It's working flawlessly! The engine seems a little happier too. __________________ BMW CCA Track Instructor Join to win a M School Day at the Performance Center! Enter Referral ID: 420186
	Appreciate 0 Quote

08-04-2010, 07:20 AM	#72
Nate2046 Lieutenant 16 Rep 421 Posts Drives: '11 e92M Join Date: Mar 2008 Location: Indianapolis, In iTrader: (2)	Really? That's great, maybe I won't be removing my headers after all. I'll have to get in touch with O-cha about replacing my sim with the new one.
	Appreciate 0 Quote

08-17-2010, 11:01 AM	#75
Nate2046 Lieutenant 16 Rep 421 Posts Drives: '11 e92M Join Date: Mar 2008 Location: Indianapolis, In iTrader: (2)	Any updates on this? I'd really like to move forward on either removing my headers and the non-functioning sim or replacing it with a working one. I'm getting annoyed staring at the ses light.
	Appreciate 0 Quote

08-22-2010, 09:20 PM	#76
mfanatic325 ///M-fanatic 193 Rep 3,885 Posts Drives: '01 911 Turbo Join Date: Oct 2007 Location: Cupertino, CA. iTrader: (23)	I'm going to be trying out Ebay headers soon (since some of my E46 M3 friends have them installed with success). Is there any update for this sim? I tried PM-ing O-Cha, but haven't received a reply as of yet
	Appreciate 0 Quote

08-23-2010, 01:46 PM	#77
O-cha Brigadier General 218 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	Time and mileage is what's needed, I don't want there to be any more issues, but its getting there. __________________
	Appreciate 0 Quote

08-23-2010, 05:24 PM	#78
Nate2046 Lieutenant 16 Rep 421 Posts Drives: '11 e92M Join Date: Mar 2008 Location: Indianapolis, In iTrader: (2)	I've put over 6000 miles on the original sim design. Would love to get my hands on the new one ASAP
	Appreciate 0 Quote

08-23-2010, 08:38 PM	#80
Nate2046 Lieutenant 16 Rep 421 Posts Drives: '11 e92M Join Date: Mar 2008 Location: Indianapolis, In iTrader: (2)	Cool, thanks for the update. Glad to see you're getting it dialed in.
	Appreciate 0 Quote

08-23-2010, 09:08 PM	#81
mfanatic325 ///M-fanatic 193 Rep 3,885 Posts Drives: '01 911 Turbo Join Date: Oct 2007 Location: Cupertino, CA. iTrader: (23)	Could I join in the testing phase as well perhaps at cost? I'm truly interested, as I already ordered my Ebay headers, and I've already installed on an S54 motor before, so I'm probably going to get this installed as soon as I can. But, I'd need the peace of mind to get the car running right afterwards
	Appreciate 0 Quote

09-16-2010, 11:38 PM	#82
Nate2046 Lieutenant 16 Rep 421 Posts Drives: '11 e92M Join Date: Mar 2008 Location: Indianapolis, In iTrader: (2)	So, its been like a month and a half, any update? I'm going to be taking my car in for service fairly soon and I really want the code cleared before I do. Its either going to have to be the new sim or removal of the old along with the headers.
	Appreciate 0 Quote

10-04-2010, 11:14 PM	#83
Nate2046 Lieutenant 16 Rep 421 Posts Drives: '11 e92M Join Date: Mar 2008 Location: Indianapolis, In iTrader: (2)	Trying to be patient here..............any updates?
	Appreciate 0 Quote

10-04-2010, 11:39 PM	#84
O-cha Brigadier General 218 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	No and I think darkstars planning on getting a flash. It's an extremely difficult thing to do remotely without my tools, so I think without someone local I won't do it. Don't want to put anyone else through the frustration. __________________
	Appreciate 0 Quote

10-20-2010, 10:35 AM	#85
3002 tii Lieutenant General 2283 Rep 12,565 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.75] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.24]	that sucks, continue to update please. i'd like to get headers in the future but alot of it depends on this mod. i know AA just released a tune for the n52 (not expecting huge gains but if this is something they can incorporate, then it might be worth it...) __________________ Follow for latest mods
	Appreciate 0 Quote

10-20-2010, 11:54 AM	#86
DarkstarZero Lieutenant Colonel 1014 Rep 1,721 Posts Drives: Daytona 95 M3, X7 M50, e92 M3, Join Date: Nov 2007 Location: Washington DC iTrader: (6)	I got the ESS flash but asked them to not disable the O2s so I'm still tinkering with the sim. I've got an idea of how to get it so the readings are just right, I just have to tweek the sim and clear codes every other week until I find that magic setting. It's a long process but I'll let you guys know once I hit 1000 miles with no codes. __________________ BMW CCA Track Instructor Join to win a M School Day at the Performance Center! Enter Referral ID: 420186
	Appreciate 0 Quote

10-20-2010, 05:36 PM	#87
kav Lieutenant 49 Rep 401 Posts Drives: Z4M Join Date: Oct 2007 Location: Canada iTrader: (1)	The SIM definintely has a role. But so far no CEL after relocating O2 sims behind secondary cats.
	Appreciate 0 Quote