Questions about passing emission - BMW 3-Series (E90 E92) Forum

Chicks-Love-Bimmers · 07-10-2012, 12:00 PM

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?

uniter · 07-12-2012, 08:17 AM

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.

07-10-2012, 12:00 PM	#1
Chicks-Love-Bimmers Captain Drives: FBO 335i Join Date: May 2010 Location: Bellevue, Washington Posts: 713 iTrader: (6) Garage List 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 12:07 PM.
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07-12-2012, 08:17 AM	#2
uniter Black on Black on Black. Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA Posts: 363 iTrader: (1)	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.