E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Emission test prep



Reply
 
Thread Tools Search this Thread
      05-03-2013, 02:55 PM   #1
BoostaVita
Private First Class
5
Rep
143
Posts

Drives: 08 335xi
Join Date: Jul 2011
Location: autobahn

iTrader: (0)

Emission test prep

Hi all, having emission test due soon. Before doing so, should I:

1. uninstall cobb
2. replug trunk actuator for golf tee mod, remove shadow code with BT tool
3. use CRC emission guarantee to pass/ techron, then oil change before test
(used CRC on my other car with p0402 cat code, code gone permanently since and passed emission.)

Please advice. TIA
Appreciate 0
      05-03-2013, 03:02 PM   #2
joec500
Brigadier General
78
Rep
3,004
Posts

Drives: it has 4 wheels
Join Date: Jul 2008
Location: San Francisco

iTrader: (10)

You don't actually need to do #2. Also you need to complete a few drive cycles, just to make sure readiness is set.
__________________
2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
Appreciate 0
      05-03-2013, 03:25 PM   #3
scottp999
Brigadier General
99
Rep
4,764
Posts

Drives: 4runner SR5
Join Date: Mar 2007
Location: MD

iTrader: (2)

Garage List
2007 BMW 335  [4.50]
I bought a $28 tool off amazon that checks readiness. It's not necessary, but I like knowing before I made the trip that I would not be rejected for readiness issues.

http://www.amazon.com/gp/product/B00...ls_o03_s00_i00
Appreciate 0
      05-03-2013, 05:24 PM   #4
carlsontheflyer
Private First Class
carlsontheflyer's Avatar
United_States
4
Rep
113
Posts

Drives: 2010 335i M-Sport 6MT
Join Date: May 2013
Location: Atlanta, GA, USA

iTrader: (1)

Quote:
Originally Posted by Bossimo View Post
Hi all, having emission test due soon. Before doing so, should I:

1. uninstall cobb
2. replug trunk actuator for golf tee mod, remove shadow code with BT tool
3. use CRC emission guarantee to pass/ techron, then oil change before test
(used CRC on my other car with p0402 cat code, code gone permanently since and passed emission.)

Please advice. TIA
P0402 is an EGR code (Flow Excessive Detected). A cat code would be P0420 for bank1 or P0430 for bank 2.

CRC Guarantee to Pass additive is complete junk. It's snake oil. It does absolutely nothing. I own an emission testing station in Atlanta. In the 5 years since I've been in business, I've done probably 35,000 inspections. Many of my customers have tried this stuff and it has never helped. Ever. The fact that your trouble code went away is a pure coincident. I have seen plenty of temporary or intermittent malfunctions, especially with EGR systems and catalytic converters.

I don't know where you are, but in Georgia as long as your car doesn't throw any trouble codes, passes readiness, has a working MIL (check engine light), and has a catalytic converter, it will pass the emission test.

Good luck.
__________________
Carlson The Flyer | BMW CCA # 423862
2010 e92 335i, Le Mans Blue, Sport, Premium, M-Sport, 3 pedals of course!
Heated Seats | Black Dakota Leather | Cobb FMIC | Cobb AP | BMW M Performance Exhaust |
Appreciate 0
      05-03-2013, 06:13 PM   #5
BoostaVita
Private First Class
5
Rep
143
Posts

Drives: 08 335xi
Join Date: Jul 2011
Location: autobahn

iTrader: (0)

I made a typing mistake, the code i got was p0420 (cat inefficiency) not p0402. Could be coincidence though that it disappear after crc. My car is not throwing any codes and running fine but just want to make sure I can pass the first time since it's higher mileage (130+k). Thanks for the input.
Appreciate 0
      05-03-2013, 07:01 PM   #6
carlsontheflyer
Private First Class
carlsontheflyer's Avatar
United_States
4
Rep
113
Posts

Drives: 2010 335i M-Sport 6MT
Join Date: May 2013
Location: Atlanta, GA, USA

iTrader: (1)

Quote:
Originally Posted by Bossimo View Post
I made a typing mistake, the code i got was p0420 (cat inefficiency) not p0402. Could be coincidence though that it disappear after crc. My car is not throwing any codes and running fine but just want to make sure I can pass the first time since it's higher mileage (130+k). Thanks for the input.
In humid conditions dew and moisture can collect inside the cats and prevent them from heating up fast enough. Your ECU can then temporarily throw a code, P0420 or P0430. Then, when all that water inside the cats burns off, after a couple of days and warmup cycles, the ECU is satisfied and the codes go away.
__________________
Carlson The Flyer | BMW CCA # 423862
2010 e92 335i, Le Mans Blue, Sport, Premium, M-Sport, 3 pedals of course!
Heated Seats | Black Dakota Leather | Cobb FMIC | Cobb AP | BMW M Performance Exhaust |
Appreciate 0
      05-04-2013, 12:26 AM   #7
BoostaVita
Private First Class
5
Rep
143
Posts

Drives: 08 335xi
Join Date: Jul 2011
Location: autobahn

iTrader: (0)

That makes sense. Appreciate the info.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 03:57 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST