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  #11  
Old 10-06-2020, 02:59 PM
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Quote:
Originally Posted by andrewwynn View Post
OBD emissions issue after EU2? And what is the process? With many e53 at 19-20 yr age, this could quickly become Ve EU popular
The ability to pass an emission test with EU2 will vary from state to state. Basically, the check engine light does work but it doesn't come on for the bulb check at key-on. Some of the readiness monitors will show 'not present' (EVAP, SAP, CAT, O2 heaters, etc.). Depending on the software the state checker is using, they could show as 'not ready' or 'not present'. States vary in terms of how many monitors can show 'not ready' while still allowing the car to pass. The stricter states will look for that check engine light at key-on, and the EU2 tune won't pass. In the more lenient states, you can pass with EU2 (if you have no trouble codes set) and 3 or 4 monitors 'not ready'.
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  #12  
Old 10-07-2020, 07:42 AM
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I think can have up to two not ready in WI as long as one is EVAP. I've never heard people mention SES light not coming on at key on.
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  #13  
Old 10-07-2020, 04:01 PM
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Does the SES light come up on the cluster lamp check? Be interesting to know....
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  #14  
Old 11-14-2022, 02:00 AM
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SES probably doesn't come on with UE2 tune.

I just deleted SAP and am wondering if I should delete post cat o2 sensors as well.
Not sure if it changes anything at all, either way?

The reason I'm considering deleting rear o2 sensors is because bmw scanner 1.4 is displaying shadow errors for them, which kinda bugs me, and I cannot get rid of the them.
I know andrewwynn is aware of those stubborn codes
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  #15  
Old 11-14-2022, 09:59 AM
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Quote:
Originally Posted by Bmwe5320023.0 View Post
SES probably doesn't come on with UE2 tune.

I just deleted SAP and am wondering if I should delete post cat o2 sensors as well.
Not sure if it changes anything at all, either way?

The reason I'm considering deleting rear o2 sensors is because bmw scanner 1.4 is displaying shadow errors for them, which kinda bugs me, and I cannot get rid of the them.
I know andrewwynn is aware of those stubborn codes

Do you mean the O2 short circuit codes? Those are not real -- BMW scanner shows those for everybody but they don't show up for any other kind of scanner, from what I understand at least.



Second question -- Did deleting the SAP cause any check engine light for you? I have been getting intermittent codes for mine on the Foxwell and BMW Scanner (not on the dash) so I just removed it this weekend. It only took a few minutes so I will put it back in if I get a code.



The pump works fine with a 12v battery, so I'm guessing the valve is bad, but I haven't been able to test the valve yet.
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  #16  
Old 11-14-2022, 04:46 PM
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I dont remember the codes for o2 sensor, I'll have to double check.

I removed the SAP physically and coded it out.
I also reset adaptations, removed speed limit and ews.

The SES (service engine soon) light came on after the flash. Not sure why. Maybe because SAP is coded out.
But no check engine light
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  #17  
Old 11-14-2022, 05:45 PM
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Never mind, the SES light went out. So all good now, SAP deleted, no codes.
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  #18  
Old 11-15-2022, 12:58 AM
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Sorry, did you flash the EU2 tune or code the SAP out in a different way?



I went down an EU2 rabbit hole tonight and now I'm actually thinking I might want to do it.
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  #19  
Old 11-15-2022, 02:12 AM
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I coded out SAP with tuner pro just by changing the c_conf_sap value from 0 to 1.

I didn't want to flash EU2 because I think it disables check engine light.
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  #20  
Old 11-15-2022, 01:08 PM
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Quote:
Originally Posted by e39_touring View Post
Google BMW eu2 tune for m54. It's free! You just need an obd2/inpa cable (about $15 on ebay) and inpa/winkfp which can be downloaded on various forums.

This will eliminate the post cat sensors from the tune and will allow your x to operate properly without therm. A lot of folks that remove their cats and delete the secondary o2 sensors complain of exhaust stink. The engine runs pig rich if you remove the secondary o2 sensors without properly tuning them out. The eu2 tune is the factory tune for BMWs spec'd without cats in other markets.
This worked flawless on my e46 for years
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