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BMW 3-Series (E90 E92) Forum
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SMOG 2018
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01-16-2018, 12:53 PM | #3 |
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I'm due for smog too, I'll have to put stock air box back. I have CP and BOV installed too, pain in the ass to take those off.
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01-16-2018, 02:11 PM | #5 |
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01-16-2018, 02:18 PM | #6 |
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01-16-2018, 09:06 PM | #7 |
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Buy a Down pipe fix, drive around 150 miles or so until all the sensors say ready. Find a place who doesn't care about your intake or put you stock box on and you'll pass. Those are steps I took. Just remember to drive until all your sensors reset.
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01-16-2018, 09:11 PM | #8 |
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I just threw my stock DP's and air box back on and made sure my sensors were ready. Didn't feel like taking a chance with intakes and catless down pipes, they didn't say anything bout my intercooler or anything. Much easier in my opinion to take the 2 hours to put the stock dp's and airbox back on then worry about and try to find a smog ref that'll pass it.
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01-19-2018, 12:12 AM | #10 |
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01-19-2018, 03:18 AM | #11 |
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01-19-2018, 03:51 AM | #12 |
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Drives: BMW E90 Dinan stage 3 335I
Join Date: Mar 2017
Location: Peoples Republic of California
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Dp fix
You have to find the Bmw drive cycle and follow that. It may take a few times but they will all reset with the dp fix on and it is a good suggestion to have the stock airbox on.
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01-23-2018, 07:45 PM | #13 | |
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Quote:
He did crawl under and look for the cats in the DP. If you have removed the cats and have DP, beware.
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