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06-13-2015, 04:30 PM | #1 |
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Option to delete SES light triggers for cat delete
For reasons I won't get into, I am NOT interested in getting a tune. I am also not interested in piggyback solutions like the Akra delete-r or the BMS "downpipe fix" (which doesn't work).
I just need someone to get into my stock programming and delete the DTCs that show up when you remove the cats. I'm getting frustrated because I help out a ton of forum members with various coding/programming features on their M3s all the time but that's something I can't do myself and apparently there's no one to help |
06-13-2015, 07:25 PM | #2 | |
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At this point might as well get some fine tuning due to the lack of primary cats. Sorry couldn't help more than that. Dave
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06-13-2015, 07:36 PM | #3 |
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There's no way to do it properly other than a device that will clear faults like the P3 gauge or Delete-R.
You can play with extenders, but on a Catless setup this will likely not work. Another way is wiring certain components into oxygen sensor wiring, but this is worse than getting proper software.
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06-13-2015, 11:14 PM | #6 |
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Can you relocate the rear O2 sensors to someplace exposed to the atmosphere?
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06-13-2015, 11:29 PM | #7 |
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I'm no expert with the electronics so maybe somebody else can explain- why hasn't anybody come up with a way to relocate the second O2 sensor and put it behind the REAR cats, while eliminating the front, more restrictive ones?
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06-14-2015, 01:13 AM | #8 |
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Kaiv,
I would look at the Delete-R a little more. Its a great solution if you don't want to run a tune and completely transparent to the rest of the car. I have run the Delete-R for a few months now with no issues. I also wanted to stick to the OE 240E software. The installation is very clean.
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06-14-2015, 11:58 AM | #9 |
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You likely still throw a code if the front cats are deleted.
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06-14-2015, 04:02 PM | #11 | ||||
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If a "tuner" can tweak vanos timing, ignition timing and whatever other parameters; why can't they do the cat delete alone and leave everything else intact and stock?! Quote:
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I was just under the impression that it just constantly clears the code instead of preventing it from lighting up in the first place (?) I tried one a couple years ago and it never worked for me (I suspect that's why they discontinued it). |
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06-14-2015, 04:27 PM | #12 |
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I am sure you could pay a tuner to do only an 02 sim. But they may charge you more than you want to pay.
I tried Vibrant 02 extenders with the various fittings and they did not work. I tried Delete-R and it worked as far as the CEL goes but I never tried OBD2 plug in inspection with it. I sold it for the $200 I paid and bought a BMS DP Fix for $95 and it works. |
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06-14-2015, 08:39 PM | #13 |
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No doubt that cat delete and nothing else can be done in a tune. It would be 99.9% factory software other than that one change. But ANY change in the code is considered a tune because it's not OEM.
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06-14-2015, 11:09 PM | #15 |
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It has kept the light from popping up for me except for one time. It came on for about a minute and then cleared. Other than that one time, its never come on since the install. It might be happening and I don't notice. But either way, job done.
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06-15-2015, 07:31 AM | #16 |
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I said the mechanical O2 simulator works and you said not sure it will work. I don't know what else to say. It worked for me and it's now working on my 911 turbo. It's not rocket science it's a mechanical device to pull away the sensor. They are cheap as hell too. Why not? Cheapest option and no messing with the ECU. Otherwise this post makes no sense. People are offering you options but you don't want to do them.
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06-15-2015, 10:48 AM | #17 |
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Provide some more detail on what you used in terms of part numbers and restrictor fitting if any, and whether you were fully catless or partially catless.
I spent $70 for a pair of the Vibrant 90 degree 02 extenders with restrictions and they did not work. This is with both cats deleted, as opposed to just test pipes in place of the primary cats or a fabspeed secondary cat delete. Waste of money for me. There are some "mini cat" 02 extenders that have a mini cat incorporated into them. Obviously they cost more. Bigdaddysgarage sells them. I considered them, but the seller would not offer a money back guarantee if they failed. Too much money to risk. The concept may work, though, since Supersprint sells something like this with its test pipes. |
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06-15-2015, 11:33 AM | #18 |
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sorry to thread jack but does the delete-r allow the car to throw actual engine codes if something were to happen?
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06-15-2015, 02:30 PM | #19 | |
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06-15-2015, 02:55 PM | #20 |
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BMS sold a DP Fix for the S65 for maybe a year and then stopped. I bought one and it works. Not sure why BMS stopped selling them. You have to adjust it correctly and stronger is counter clockwise rather than clockwise, which is counterintuitive so maybe people adjusted them wrong. Or maybe the EPA went after them as the EPA has done with sellers of similar products. These are for off road use only, obviously.
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06-15-2015, 03:03 PM | #21 | |
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06-15-2015, 04:06 PM | #22 |
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The BMS device does not reset CEL. It alters the rear 02 reading. You will have to ask BMS and/or the EPA whether EPA enforcement is an issue. I know of one rear 02 simulator company that stopped selling its device due to EPA threats.
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