BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > BIMMERPOST Universal Forums > General Automotive (non-BMW) Talk + Photos/Videos
 
Evolve Automotive
Post Reply
 
Thread Tools Search this Thread
      12-21-2012, 03:10 PM   #1
Crypty
Private First Class
 
Drives: '08 e92 M3
Join Date: Jul 2012
Location: NJ

Posts: 161
iTrader: (0)

Check engine light from too low octane gas?

Can lower than spec'd octane gas in a car cause the CEL to come on? I put some brand-x 89 in a car that takes 91. CEL came on, though it drove fine. I balanced the mix with some 93 and soon after the CEL went back out.

Last edited by Crypty; 12-21-2012 at 04:44 PM.
Crypty is offline  
0
Reply With Quote
      12-21-2012, 05:08 PM   #2
krnnerdboy
Colonel
 
krnnerdboy's Avatar
 
Drives: v10 m6
Join Date: Nov 2008
Location: so cal

Posts: 2,039
iTrader: (10)

That can only be caused if the lower octane caused a misfire. Random misfire lights go off on their own but are still stored in the ecu. Get a reader and if its a random misfire code, there in lies your issue
__________________

W463, f30, 640i gc , gt3
Recent past: z4m, x5 lci, boss 302, c6 z06, m6
krnnerdboy is offline   United_States
0
Reply With Quote
Post 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
Forum Jump


All times are GMT -5. The time now is 02:26 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, 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