BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


Reply
 
Thread Tools Display Modes
Old Wed, Oct-17-2018, 07:50:53 PM   #1
conjarlo992
Banned
 
Join Date: Dec 2017
Age: 20
Posts: 12
Reputation: 0 conjarlo992 is on a distinguished road

United States




Default Help Diagnosing!!

So I started my car and got a very rough idle with a SES as well. Ran the codes and the pic attached is what showed up. Iíll be doing all ignition coils and spark plugs. Should that do the trick? Anyone have similar experiences with these code?
Jump to top conjarlo992 is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Wed, Oct-17-2018, 07:53:53 PM   #2
Texaz3
Registered User
 
Join Date: Dec 2015
Posts: 1,264
Reputation: 0 Texaz3 is on a distinguished road

United States




Default Re: Help Diagnosing!!

How is your battery? Seems more like a battery/voltage regulator issue.
Clear the codes, make sure your battery is charged, and see which codes come back.
Jump to top Texaz3 is offline   Reply With Quote
Old Wed, Oct-17-2018, 08:49:20 PM   #3
duracellttu
I think fast, I talk fast and I drive fast...
 
Join Date: Apr 2007
Posts: 1,997
In the garage:
Reputation: 0 duracellttu is on a distinguished road
Location: Las Vegas

United States




Default Re: Help Diagnosing!!

Also, swap the coils between a bad cylinder and a good cylinder to see if the code follows the cylinder. If it doesnít, repeat with the spark plug. That will help determine if coils/plugs are the culprit.
__________________

2005 BMW M3 ZCP - Black/Black Built not bought. All DIY!
Evolve-R | AP V2 Headers | CPI Euro200R (200 cell) | SS Non-res X-pipe + Race | 3.91 w/ 3 stage clutch | TCK SA 450/500 | Vorshlag Camber Plates
Rogue Engineering ASP, RSM, RTABs, TM | TMS Sway Bars, Camber Arms, Pullies | Mason Race Strut, Rear X-Brace | AS 30% SSK | aFe Stage 2 | SPAL Fan
AKG FCABs, SFB | Redish Reinforcement | Turbo Toys V2 Hub | WPC Treated Rod Bearings
Jump to top duracellttu is online now   Reply With Quote
Old Wed, Oct-17-2018, 10:28:31 PM   #4
atsantone
Registered User
 
Join Date: Apr 2014
Posts: 66
Reputation: 0 atsantone is on a distinguished road

United States




Default Re: Help Diagnosing!!

After you do the above recommendations and also when your done with your coils/plugs....there are a couple of items right off that should be addressed -
Thermostat looks to be operating incorrectly - I would investigate (replace)
Your bank 2 cat is bad (time for cattless headers?)
may even just need some new post 02 sensors - best to replace in pairs if original (all 4 would be best)
Jump to top atsantone is offline   Reply With Quote
Old Wed, Oct-17-2018, 10:30:13 PM   #5
conjarlo992
Banned
 
Join Date: Dec 2017
Age: 20
Posts: 12
Reputation: 0 conjarlo992 is on a distinguished road

United States




Default Re: Help Diagnosing!!

Quote:
Originally Posted by duracellttu View Post
Also, swap the coils between a bad cylinder and a good cylinder to see if the code follows the cylinder. If it doesnít, repeat with the spark plug. That will help determine if coils/plugs are the culprit.


Iím not even risking it, just replacing all coils and plugs!
Jump to top conjarlo992 is offline   Reply With Quote
Old Wed, Oct-17-2018, 10:30:35 PM   #6
conjarlo992
Banned
 
Join Date: Dec 2017
Age: 20
Posts: 12
Reputation: 0 conjarlo992 is on a distinguished road

United States




Default Re: Help Diagnosing!!

Quote:
Originally Posted by Texaz3 View Post
How is your battery? Seems more like a battery/voltage regulator issue.
Clear the codes, make sure your battery is charged, and see which codes come back.


Thank you, will give this a shot!
Jump to top conjarlo992 is offline   Reply With Quote
Old Wed, Oct-17-2018, 10:31:22 PM   #7
conjarlo992
Banned
 
Join Date: Dec 2017
Age: 20
Posts: 12
Reputation: 0 conjarlo992 is on a distinguished road

United States




Default Re: Help Diagnosing!!

Quote:
Originally Posted by atsantone View Post
After you do the above recommendations and also when your done with your coils/plugs....there are a couple of items right off that should be addressed -
Thermostat looks to be operating incorrectly - I would investigate (replace)
Your bank 2 cat is bad (time for cattless headers?)
may even just need some new post 02 sensors - best to replace in pairs if original (all 4 would be best)


Thanks for the help, Catless headers being installed this weekend! Will look into the thermostat and 02 Sensors!
Jump to top conjarlo992 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

Forum Jump



All times are GMT. The time now is 06:14:37 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright ©1999-2017 M3Forum.com
Discussing e46 M3 Press/Media/Reviews/Articles Thread in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)