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11-08-2018, 04:47 PM | #1 |
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Can't meet OBD II Emissions Readiness
As the title says... I'm running an Akrapovic evo exhaust and running a BPM stage II tune on the car. No CEL, no codes, nothing else. The car has passed emissions several times before with an identical setup so that's definitely not the issue outright.
Not ready: O2 Sensor and Catalyst I had a CEL go off a few months back because one of the O2s ended up going out but I replaced both of those so they should be good. I've been driving it around a fair amount but probably haven't met the conditions for a perfect drive cycle on any one drive since I live in NYC. Thoughts and suggestions welcome. If you have any ideas for further troubleshooting definitely let me know. |
11-08-2018, 05:27 PM | #2 | |
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Generally I'd say no, you won't pass with that set up, but, I've been wrong before. Now, different car, different engine, good luck! |
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11-08-2018, 05:42 PM | #4 |
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Most likely its your tune is preventing your car from going into OBD readiness. The tune is preventing the rear o2 codes from popping up.
Some of the states changed their guidelines and now need all system in check to pass. When before 1 system could be not ready.
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11-08-2018, 05:46 PM | #5 | |
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11-08-2018, 05:58 PM | #6 | |
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11-08-2018, 07:16 PM | #7 | |
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11-08-2018, 08:30 PM | #8 | |
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Check this out. You're actually allowed 1 monitor not ready. It's how I passed last year. Car setup is no different that before just can't figure out if something else is shot and hasn't thrown a code yet or I just need to drive more to get it down to 1. |
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11-08-2018, 09:25 PM | #9 | |
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11-09-2018, 07:54 AM | #10 |
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Ny is exactly the same as New Hampshire. You can have 1 not ready as long as it’s not o2 or catalyst those need to be ready regardless. Nothing changed in ny or nh as far as monitors are concerned your o2 has always been ready if you were passing before. Now saying that if this is the first time you have every cleared the cpu of codes after your tune was loaded I would reload your tune. Your tune more then likely made those monotirs ready with there trickery. Other option would be complete the actual drive cycle. I have the exact same setup as you aside I have stage 2 Ess tune. I passed nh this year after completing drive cycle drive after battery was replaced. Drive cycle sucked As I learned you really do need to be very precise doing it. Other option as stated is go back to stock for the test
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11-09-2018, 10:30 AM | #11 |
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Dang... it's things like this that makes me afraid of going catless even though I wanna. good luck
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11-09-2018, 10:51 AM | #12 |
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You can’t go catless in mass unless it’s tuned out and you know someone. I am not sure but I think even the high flow converters fail in ma now due to a visual check? Ny and nh started visual emission tampering in 2016. High flow cats pass in either state though missing they are supposed to fail regardless of obd
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11-09-2018, 12:34 PM | #13 |
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There is no stage 2 tune which allows o2 readiness on a catless setup...
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11-09-2018, 06:38 PM | #14 |
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11-09-2018, 07:01 PM | #15 |
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Its the tune. thank god they scrapped driveclean program in Ontario.
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11-09-2018, 07:44 PM | #16 |
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Its not the tune its the fact its catless. I know people on this board that have a BPM Stg. 2 tune and just put the OEM xpipe back on and they got rear 02 readiness.
The tune just won't allow the inefficient catalyst code to kick off. They still monitor rear 02 sensors. If a rear 02 sensor fails it will kick off a CEL. Dave
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11-14-2018, 10:40 AM | #17 |
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Figured I'd give you guys an update. Had the car out this weekend and tried using a different OBD scanning app on my phone and had it stream the data output from the 4 O2 sensors. Turns out Bank 1 Sensor 2 isn't giving any output changes and is totally shot. Will be swapping out the sensor next time I can work on the car and I'll update if everything is back to normal.
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01-04-2019, 09:06 AM | #18 |
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Can't pass do to Readiness
Hello all, I just got my first BMW and went to have my emissions done yesterday and failed. The guy said that I failed do to readiness.... I had a engine light come on for a few days back in November,but it went off. I know I have driven over 100+ miles since then. What should I do? Is there any way to reset this? Or since it was plugged up to the emissions do I start driving 100+ now?
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01-04-2019, 09:30 AM | #19 | |
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