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      05-30-2022, 08:28 PM   #96
m2css
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Quote:
Originally Posted by M2C Rado View Post
Hi all,

I've been doing a lot of research in the past few months on how to deal with the OPF. I'm still not clear on a few topics and namely the issues arising from deleting the OPFs... Does anyone have answers/opinions on the below:
  • Would it be possible to simply load the NA-spec (or non-EU) ECU tune, instead of going through a full-on tune? This may sound retarded, but my point is - that's technically still an OEM ECU mapping, so it shouldn't have an impact on the warranty, no? I'm trying to get a BMW dealer to do this... I'll let you know what they say, but wanted to check if someone here has done something like this.
  • Are the engine modes (Efficient/Sport/Sport+) related to different ECU maps? My idea is to have and easily be able to change between multiple maps loaded in the ECU. For example, I'd want to have an "Efficient" map where the engine is running on low power, making it easy to pass the emissions checks? (Any VW software engineers here? ) Another ECU map would be for normal road use, say something similar to Sport, and finally a Sport+ map for the Nuerburgring.
  • Which muffler system makes use of the stock valve control unit/cabling? I don't care much for being able to control the valves though the buttons on the steering wheel. I'm fine using the engine mode button.

I suppose there are a few issues here in the EU with deleting the OPF:
1. Risk of getting errors on the dash / car going into limp mode.
2. Passing inspection. I've been told here in Germany they still don't check exhaust gases, and I've heard of people with the AA midpipe passing easily with a warm engine.
3. Risk of losing your warranty if you tune the ECU.

Am I missing something?
I've had the exact same thought about the american markets ECU map, and if a bmw dealership can simply make a european car run on that without the opfs and with warranty etc still intact. Did you have any success or progress with your thoughts? Keen to hear your current views on the matter, thanks!

(have currently installed catless DP and AA single channel midpipe, the sound is godly but unfortunately I get limp mode... Even with an opf delete module & a can module to disable secondary o2sensors... going on a roadtrip through europe in a few days/weeks and starting to get frustrated. Bought opf delete module, was a real mission to install them, mounted the mid pipes and downpipes, and still get limpmode because the company didnt state on their product page that the pressure sensors still need to be mounted on the DP pressure pipes for the deleter to work (only on the instructions which are read when installing...) Uninstalled everything except the opf delete modules, got a welder to help me out and mount pressure pipes on my catless downpipes so I then could mount the pressure sensors as needed. Installed everything after all this headache and still... limp mode.)

Mad but not much I can do other than continue trying to resolve this however possible. Appreciate you taking the time.

edit: only option now would be if a bmw service point could install the NA map on my m2, or I need to get a hold of a jb4/bm3 (no flash since I want to keep warranty) but really sucks since i spent the same amount for the opf delete module and secondary o2 sensor disabler (for the catless DP's). Really shouldve gone for that right in the beginning, so much headache for nothing:/
Anyway wish for you (and everyone with the same issue) a lot less hassle than what I have had to go through and will keep on going through til I get it running properly.

Last edited by m2css; 05-30-2022 at 08:35 PM..
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