Drive cycle for emissions on m3?

V8HAHA · Fri, Nov-09-2007, 07:36:11 PM

I went to get my emissions done today and I failed b/c the computer said it was "Not Ready." The emissions guy asked if I recently unhooked the battery or took it in for service, but I've put on about 500 miles since the BMW recall. Is it b/c I only drove the car about 20 mins before I took it in for emission? Whats the normal drive cycle for a E46 M3? Btw, I'm S/C if that matters..

emm3tt · Tue, Aug-03-2010, 02:28:57 PM

Old thread, but I'm in the same boat. I'm not supercharged, however. Any thoughts?

intelone · Tue, Aug-03-2010, 02:44:58 PM

Here's the drive cycle that I use. You don't have to do it all at once. Find out which system is not ready, and do that certain one. Anyone with an OBDII scanner or the smog station should be able to tell you which system is not ready.

skeelo34 · Tue, Aug-03-2010, 03:08:46 PM

If your car sits around for a long time, this will happen. Go drive 30-50 miles and you should be fine. If you still have the problem, then I'm not sure. Resetting the ecu with autoenginuity software can also make it not ready if you clear everything.

emm3tt · Wed, Aug-04-2010, 01:55:07 AM

Very interesting. Thank you!

Hanzo3 · Mon, Jun-27-2011, 05:46:19 AM

I am having the same problem. Evap and cats aren't ready. I tried the drive cycle and still not ready.

M302_IMOLA · Mon, Jun-27-2011, 03:44:27 PM

Quote:

Originally Posted by Hanzo3

I am having the same problem. Evap and cats aren't ready. I tried the drive cycle and still not ready.

Just drive the **** out of the car. I logged about 300 miles in one day just driving around trying to get mine in the ready state...it passed finally!

KrisM3 · Mon, Jun-27-2011, 05:35:53 PM

Quote:

Originally Posted by Hanzo3

I am having the same problem. Evap and cats aren't ready. I tried the drive cycle and still not ready.

Did you have the DME recall flash done? I was in the same spot 4 months ago after my trickle charger died during storage. Did 800+ miles of drive cycles and the same 2 not ready. Dealer flashed me and ~50 miles later I was reading full ready.

Hanzo3 · Mon, Jun-27-2011, 07:41:46 PM

Got it to pass finally. The drive cycle should be stickied up there. I drove 55 mph on the slow lane as stated. I did the 5 min idle in gear. 2 min cold start up. This gave it the ready signal. I am so glad I didn't have to take it to the dealer to smog it. Thanks!

Fri, Nov-09-2007, 07:36:11 PM	#1
V8HAHA Registered User Join Date: Apr 2005 Posts: 898 Reputation: 0	Drive cycle for emissions on m3? I went to get my emissions done today and I failed b/c the computer said it was "Not Ready." The emissions guy asked if I recently unhooked the battery or took it in for service, but I've put on about 500 miles since the BMW recall. Is it b/c I only drove the car about 20 mins before I took it in for emission? Whats the normal drive cycle for a E46 M3? Btw, I'm S/C if that matters.. __________________

Tue, Aug-03-2010, 02:44:58 PM	#3
intelone Registered User Join Date: Oct 2007 Posts: 561 Reputation: 0 Location: Camp Pendleton	Here's the drive cycle that I use. You don't have to do it all at once. Find out which system is not ready, and do that certain one. Anyone with an OBDII scanner or the smog station should be able to tell you which system is not ready. __________________ 6MT CB .:. IMEF IMHG OIF USMC Veteran .:. College Student ///Alpine .:. 9861 .:. H/C 701 .:. S624 .:. JL Audio .:. 300/4 300/2 500/1 .:. 10W6v2 wicked .:. Focal K2Ps Diamond Graphite v710s .:. KW2s .:. ZCP Rotors .:. 996 Calipers .:. SS lines .:. Textar pads .:. VIS Bootlid CSL Diffuser .:. CF Grills & Gills .:. Alcantara Steering Wheel & Boots .:. 55w 5000K TFX My Sequential Turn Signals

Mon, Jun-27-2011, 05:46:19 AM	#6
Hanzo3 Registered User Join Date: Jul 2009 Posts: 51 In the garage: '04 BMW M3 Reputation: 0 Location: Socal	Re: Drive cycle for emissions on m3? I am having the same problem. Evap and cats aren't ready. I tried the drive cycle and still not ready.

Mon, Jun-27-2011, 07:41:46 PM	#9
Hanzo3 Registered User Join Date: Jul 2009 Posts: 51 In the garage: '04 BMW M3 Reputation: 0 Location: Socal	Re: Drive cycle for emissions on m3? Got it to pass finally. The drive cycle should be stickied up there. I drove 55 mph on the slow lane as stated. I did the 5 min idle in gear. 2 min cold start up. This gave it the ready signal. I am so glad I didn't have to take it to the dealer to smog it. Thanks!

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Tue, Aug-03-2010, 02:28:57 PM	#2
emm3tt Registered User Join Date: May 2010 Posts: 10 Reputation: 0	Old thread, but I'm in the same boat. I'm not supercharged, however. Any thoughts?

Tue, Aug-03-2010, 03:08:46 PM	#4
skeelo34 Registered Abuser Join Date: Oct 2006 Posts: 344 Reputation: 0 Location: long island	If your car sits around for a long time, this will happen. Go drive 30-50 miles and you should be fine. If you still have the problem, then I'm not sure. Resetting the ecu with autoenginuity software can also make it not ready if you clear everything.

Wed, Aug-04-2010, 01:55:07 AM	#5
emm3tt Registered User Join Date: May 2010 Posts: 10 Reputation: 0	Very interesting. Thank you!

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