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Smog las vegas
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07-15-2020, 05:59 PM | #1 |
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Smog las vegas
Hello everyone,
I'm up for smog, and I've recently moved from CA. I'm FBO so obvi catless dps. What can I do to pass smog without removing my DPs and replacing with stock ones? I hear the DP fix is unreliable and and PITA to get it to work if it even ever works. I have my JB4 on Map 0, and will flash MHD to Map 0/Stock as well and complete a few drive cycles. But any tips about how to get around it or how to only fail X amount of monitors would be appreciated!
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01-05-2022, 05:12 PM | #5 |
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I tried the DP Fix and it didn't work, so I swapped off the catless DPs for the stock cats, and passed
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01-05-2022, 08:07 PM | #6 |
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01-05-2022, 09:00 PM | #7 |
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yes, it gets easier every time you do it
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02-02-2022, 03:41 PM | #9 |
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From what I know hi flow cat dps will always go bad. Now, for a brand new pair would they pass? I'm not too sure. Maybe someone else can chime in who's used them in the past.
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02-02-2022, 07:47 PM | #10 |
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02-03-2022, 12:38 PM | #11 |
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02-04-2022, 12:32 AM | #12 |
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02-04-2022, 03:43 AM | #13 |
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Well the cost of living is favorable in comparison to S. CA, so that should be a plus. As far as the SMOG check goes they only scan, no tailpipe sniffer, so you may be able to get away with your setup. I have all my cats so I can't say 100%.
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02-04-2022, 06:11 PM | #14 |
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Not sure if I want to keep swapping stock parts back on every year just for smog. My motor has a bunch of miles on it and the turbos are on its last leg. For the cost of rebuilding the motor and new turbos, I might as well just do an LS swap and turn the E90 into a dedicated track car lol.
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02-05-2022, 02:03 PM | #15 |
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03-09-2022, 08:30 PM | #16 |
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Damn, smog is pretty easy here. They don't check for anything lol, my hood didn't even get opened. Definitely going with downpipes fix next time around.
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03-13-2022, 10:46 AM | #17 |
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03-14-2022, 11:28 PM | #18 |
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Of course my rear turbo starts leaking oil after I put the stock cats back on lol. Pretty sure it was on its way out, the added back pressure probably pushed it over the edge haha.
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03-15-2022, 08:31 AM | #19 |
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Were you able to bring your tools or are you going to have a shop sort it out? I take mine to Southwest Bimmers for jobs I don't particularly want to do myself.
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03-15-2022, 08:01 PM | #20 |
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I brought a small tool box with me that should have all the tools I’ll need to dig into this. Putting it on a lift this Saturday to pull the downpipes and passenger side motor mount bracket off to thoroughly inspect the leak. I’m hoping it’s just a oil feed line or return line leak. Hard to tell with all the crud in the way.
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02-06-2024, 04:03 AM | #21 |
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Hey guys! Just wanted to let you guys know that you don't have to put stock DP every year, as long as you have MHD/BM3, disable the CEL and make sure all the monitors are good then you're good to go! I have done this a billion times with my previous 335i and my current 340i always passed smog with catless DP. Hope that helped!
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04-17-2024, 10:00 PM | #22 | |
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