O2 Sim with Catless DP's

scalbert · 12-12-2007, 08:16 PM

I suppose this is more for Terry and/or Shiv if the PROcede is set up for simulation. But I assume that at least the rear O2 sensor set will be intercepted in the DME box. But what will everyone do when they go in for service?

If simulators are in place and the dealer decides to look into the DME box, they have reason to put a black mark on that vehicle.

If you remove the Sim, there is a good chance you might get a DTC on the way to the dealer which will result in a similar response by the dealer.

Just curious what the thoughts were here and if a sim could be added in-line with the sensor; possible in a connector? If not, what has the success rate been with anti-foulers?

Terry335 · 12-12-2007, 08:21 PM

Quote:

Originally Posted by scalbert

I suppose this is more for Terry and/or Shiv if the PROcede is set up for simulation. But I assume that at least the rear O2 sensor set will be intercepted in the DME box. But what will everyone do when they go in for service?

If simulators are in place and the dealer decides to look into the DME box, they have reason to put a black mark on that vehicle.

If you remove the Sim, there is a good chance you might get a DTC on the way to the dealer which will result in a similar response by the dealer.

Just curious what the thoughts were here and if a sim could be added in-line with the sensor; possible in a connector? If not, what has the success rate been with anti-foulers?

To be 100% candid, the dealer will easily notice the downpipes and know what's up. If you modify your car with downpipes don't expect the dealer not to notice.

scalbert · 12-12-2007, 08:24 PM

Quote:

Originally Posted by Terry335

To be 100% candid, the dealer will easily notice the downpipes and know what's up. If you modify your car with downpipes don't expect the dealer not to notice.

I agree for the most part. But I suspect more time is spent above, than below the vehicle. Just food for thought though.

bmwzimmer · 12-12-2007, 09:02 PM

They will probably see it when they change your oil

scalbert · 12-12-2007, 09:05 PM

Quote:

Originally Posted by bmwzimmer

They will probably see it when they change your oil

Which begs a question, is everyone who has purchased catless DP's aware they may have given up their powertrain warranty?

It will not be hard for the dealer to put two and two together...

e90AW335i · 12-12-2007, 09:05 PM

Dumb question: Do DP's void warranty?

12-12-2007, 09:05 PM

Quote:

Originally Posted by bmwzimmer

They will probably see it when they change your oil

i have catless DPs and am getting my oil change tomorrow. lets see what the dealer does..... (not that they can void anything since its not harming anything)

scalbert · 12-12-2007, 09:08 PM

Quote:

Originally Posted by kyleh4852

Dumb question: Do DP's void warranty?

They, in themselves, do not. But if to avoid SES lights, O2 sims are used, the alterations of the DME electrical system could be cause to flag the vehicle.

I am not saying this is the case. But it is a possibility many owners are facing and were not aware of initially.

e90AW335i · 12-12-2007, 09:10 PM

Quote:

Originally Posted by scalbert

They, in themselves, do not. But if to avoid SES lights, O2 sims are used, the alterations of the DME electrical system could be cause to flag the vehicle.

I am not saying this is the case. But it is a possibility many owners are facing and were not aware of initially.

Makes sense....

Terry335 · 12-12-2007, 09:21 PM

Quote:

Originally Posted by scalbert

Which begs a question, is everyone who has purchased catless DP's aware they may have given up their powertrain warranty?

It will not be hard for the dealer to put two and two together...

Again to be candid, even catted downpipes probably void the powertrain warranty. Anything that adds more horsepower can void the warranty if the dealer wants

scalbert · 12-12-2007, 09:25 PM

Quote:

Originally Posted by Terry335

Again to be candid, even catted downpipes probably void the powertrain warranty. Anything that adds more horsepower can void the warranty.

I suppose, that will probably depend on the dealer. Unfortunately, I wonder how many people have purchased DP's without knowing the possibilities.

Again, this is just speculation, but we will probably see responses in the near future.

scalbert · 12-12-2007, 09:26 PM

Quote:

Originally Posted by Terry335

Again to be candid

And when are you not.

rideelement247 · 12-12-2007, 09:42 PM

I had catless DPs on my E90. The way I avoided getting slammed was(having no O2 simm at the time), swinging by Midas ~1 mile from the dealer and getting my codes cleared (no C-reader at the time). The cleared codes should last you at LEAST 5 - 10 miles, which they wont do bringing your car in and out of the bay. I had this done and had my car test driven for a fuel pump problem, and they had no CEL occurrance. So clear your codes from the DPs before you go in, and you should be golden.

scalbert · 12-12-2007, 10:05 PM

Quote:

Originally Posted by rideelement247

I had catless DPs on my E90. The way I avoided getting slammed was(having no O2 simm at the time), swinging by Midas ~1 mile from the dealer and getting my codes cleared (no C-reader at the time). The cleared codes should last you at LEAST 5 - 10 miles, which they wont do bringing your car in and out of the bay. I had this done and had my car test driven for a fuel pump problem, and they had no CEL occurrance. So clear your codes from the DPs before you go in, and you should be golden.

Not sure that is convenient for all. Plus, those pesky Readiness tests would also be reset.

rideelement247 · 12-12-2007, 10:32 PM

Quote:

Originally Posted by scalbert

Not sure that is convenient for all. Plus, those pesky Readiness tests would also be reset.

Not familiar with readiness tests? What is that?

It worked for me at least

benyl · 12-12-2007, 11:42 PM

Having catless dps messes with your emission control system. That is enough to void warranty.

Anything catback, they will have to fight you on.

DrewKo · 12-13-2007, 12:30 AM

Well, I'm keeping my stock DPs in case the shiyat hits the fan....

itsbrokeagain · 12-13-2007, 01:14 AM

I love how your dealerships crap you out on stuff like that.

My dealership jumps at the opportunity to replace stuff, regardless of mods on the car (to a point..doing an oil change with catless downpipes doesnt void the warranty...the alpina 335 makes more power than your car with DPs so whats to cause an issue?)...its all about CSI for them.

Terry335 · 12-13-2007, 02:12 AM

Quote:

Originally Posted by itsbrokeagain

I love how your dealerships crap you out on stuff like that.

My dealership jumps at the opportunity to replace stuff, regardless of mods on the car (to a point..doing an oil change with catless downpipes doesnt void the warranty...the alpina 335 makes more power than your car with DPs so whats to cause an issue?)...its all about CSI for them.

Yeah some dealers are cool.. I've brought in 500rwhp cars and had them cover things, and I've had other cars with basically just an aftermarket muffler and gone home with a huge bill. There is no replacement for a cool dealer.

12-12-2007, 08:16 PM	#1
scalbert Major General 158 Rep 5,776 Posts Drives: '13 S4, '15 Q7 Join Date: Feb 2007 Location: Woodstock, GA iTrader: (8)	O2 Sim with Catless DP's I suppose this is more for Terry and/or Shiv if the PROcede is set up for simulation. But I assume that at least the rear O2 sensor set will be intercepted in the DME box. But what will everyone do when they go in for service? If simulators are in place and the dealer decides to look into the DME box, they have reason to put a black mark on that vehicle. If you remove the Sim, there is a good chance you might get a DTC on the way to the dealer which will result in a similar response by the dealer. Just curious what the thoughts were here and if a sim could be added in-line with the sensor; possible in a connector? If not, what has the success rate been with anti-foulers?
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12-12-2007, 09:02 PM	#4
bmwzimmer Major 39 Rep 1,084 Posts Drives: 335 Join Date: Jan 2007 Location: 91 octane states iTrader: (0)	They will probably see it when they change your oil
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12-12-2007, 09:05 PM	#6
e90AW335i Major General 142 Rep 6,608 Posts Drives: e90 335i Join Date: Sep 2007 Location: ...... iTrader: (4)	Dumb question: Do DP's void warranty?
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12-12-2007, 09:42 PM	#13
rideelement247 Lieutenant Colonel 59 Rep 1,677 Posts Drives: 08 335i, 67 Camaro SS Join Date: May 2007 Location: South Florida iTrader: (2)	I had catless DPs on my E90. The way I avoided getting slammed was(having no O2 simm at the time), swinging by Midas ~1 mile from the dealer and getting my codes cleared (no C-reader at the time). The cleared codes should last you at LEAST 5 - 10 miles, which they wont do bringing your car in and out of the bay. I had this done and had my car test driven for a fuel pump problem, and they had no CEL occurrance. So clear your codes from the DPs before you go in, and you should be golden. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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12-12-2007, 11:42 PM	#16
benyl Lieutenant 6 Rep 408 Posts Drives: '08 335i, '10 W204 w/m156 Join Date: Nov 2007 Location: Calgary iTrader: (0)	Having catless dps messes with your emission control system. That is enough to void warranty. Anything catback, they will have to fight you on. __________________ E92 335iA, AW on BLK, Al trim, Premium, Nav, 6FL, CA, Sport, PDC, Paddles... W204 C63, OBS on BLK, Carbon Trim, Premium, Performance, Rev Cam, and stock exhaust...
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12-13-2007, 12:30 AM	#17
DrewKo Lieutenant Colonel 46 Rep 1,568 Posts Drives: 335i Montego Blue Saddle Brown Join Date: Jan 2007 Location: Atlanta, GA iTrader: (4) Garage List 2007 335i [0.00]	Well, I'm keeping my stock DPs in case the shiyat hits the fan....
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12-13-2007, 01:14 AM	#18
itsbrokeagain 311 Rep 15,745 Posts Drives: 1999 528iT, E53 X5, E46 325xi Join Date: Mar 2007 Location: Strong Island iTrader: (7)	I love how your dealerships crap you out on stuff like that. My dealership jumps at the opportunity to replace stuff, regardless of mods on the car (to a point..doing an oil change with catless downpipes doesnt void the warranty...the alpina 335 makes more power than your car with DPs so whats to cause an issue?)...its all about CSI for them.
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