Passing emissions with tephra
OK Give me a moment, I haven't done this in years. I need to download software what should I get 1st? I have the cable and a simple laptop so I may need step by step.
not if you have the correct definitions when you altered something
i've set the systems you don't have on your evo as unavailable, could be that you also need to set them to disabled, but first try it like this
* edit *
i did also see you are using an older version of Tephra SD, might be that there are some bugs in that version
i've set the systems you don't have on your evo as unavailable, could be that you also need to set them to disabled, but first try it like this
* edit *
i did also see you are using an older version of Tephra SD, might be that there are some bugs in that version
Last edited by KK0ng; Jun 27, 2025 at 11:10 AM.
I live in US, my tuner in Poland. I waited years for him. Should I ask him to swap my map into new tephra? Also he told me he does not know much about US emissions. Also here is my 2017 map w/Mass sensor, emission passed. Maybe you will find some differences.
i think it's related to it being an early version of Tephra SD, it's not saying your test failed, it says they are not present
same like with your MAF stock rom where you have 3 N/A and 7 OK, with your tephra you get 7 N/A 3 OK
Unfortunately i'm not really familiar with the emissions testing in US, in EU we need to pass sniffer tests here
and i don't have a US model evo here to test it out
same like with your MAF stock rom where you have 3 N/A and 7 OK, with your tephra you get 7 N/A 3 OK
Unfortunately i'm not really familiar with the emissions testing in US, in EU we need to pass sniffer tests here
and i don't have a US model evo here to test it out
Last edited by KK0ng; Jun 28, 2025 at 01:15 AM.







