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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Questions about passing emission

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      07-10-2012, 01:00 PM   #1
Chicks-Love-Bimmers's Avatar

Drives: FBO 335i
Join Date: May 2010
Location: Bellevue, Washington

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2007 E92 335i  [0.00]
Questions about passing emission

I'm currently running catless downpipes/exhaust and have Procede and BMS DP Fix, I don't think the harness for the Procede has been modified yet, I got it from someone else and it was Rev 2 V4 back then. I don't have a BT tool and from what I understand, you have to read the codes before adjusting the DP fix. Is this step absolutely crucial, will I not pass if I throw the wrong code? Should I leave the Procede in and try to install the DP fix on the harness? If I do, do I just leave it on map 0?

Last edited by Chicks-Love-Bimmers; 07-10-2012 at 01:07 PM.
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      07-12-2012, 09:17 AM   #2
Black on Black on Black.

Drives: 335i/6mt Sport,Nav,Prem.
Join Date: Feb 2010
Location: New Hope, PA

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Turn off CANClear on procede, run your car for a day, have autozone or similar read your OBD-II readiness monitors. Do yourself a favor and grab an inexpensive OBD-II scanner.

If the BMS DP-Fix doesn't work, using the procede to intercept worked well for me with a similar setup at 50% o2 modification.
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