Notices
04-06 Ralliart Engine/Drivetrain (no forced induction)

Code P0300

Thread Tools
 
Search this Thread
 
Old Mar 4, 2010, 09:04 AM
  #1  
Evolved Member
Thread Starter
iTrader: (89)
 
Ralliartize It's Avatar
 
Join Date: Nov 2009
Location: Boston
Posts: 1,073
Likes: 0
Received 0 Likes on 0 Posts
Code P0300

Has anyone thrown the P0300 code on their RA? It's random multiple misfires. My plugs barely have 4K on it so I'm curious as to what's going on. Could it be bad fuel? I have ordered replacement Denso as insurance.
Old Mar 4, 2010, 05:04 PM
  #2  
Newbie
iTrader: (2)
 
boomshakalaka's Avatar
 
Join Date: Jul 2009
Location: CT, MD
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
I got that one right after I put a cold air intake on. I think it was because I was running lean, because I cleared it a few times and it hasn't come back. Since it's not giving you a specific cylinder I'd guess it's more likely related to the AF ratio than a plug or injector issue.
Old Mar 5, 2010, 04:14 AM
  #3  
Evolved Member
Thread Starter
iTrader: (89)
 
Ralliartize It's Avatar
 
Join Date: Nov 2009
Location: Boston
Posts: 1,073
Likes: 0
Received 0 Likes on 0 Posts
I've been running a SRI for awhile without any issues. Could the MAF be bad?
Old Mar 5, 2010, 08:14 AM
  #4  
Evolved Member
Thread Starter
iTrader: (89)
 
Ralliartize It's Avatar
 
Join Date: Nov 2009
Location: Boston
Posts: 1,073
Likes: 0
Received 0 Likes on 0 Posts
Hmm..the code disappeared this morning on it's own. I don't count that as the problem being resolved b/c it's bound to come back. I cleaned my MAF a few weeks ago so that should be ok (I hope).
Old Mar 5, 2010, 11:51 AM
  #5  
Evolved Member
 
hackish's Avatar
 
Join Date: Aug 2004
Location: Canada
Posts: 528
Likes: 0
Received 0 Likes on 0 Posts
I think if it doesn't see a high misfire count for 4-5 warmup/driving cycles it will reset the code. A lot of times with a mod like a SRI that changes the air flow of the engine it will take a bit for your long term fuel trims to stabilize. A good reason to reset the computer after every mod

-Michael
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ryanholder24
Evo General
18
Sep 20, 2011 02:57 PM
erald01
Evo Engine / Turbo / Drivetrain
4
Mar 20, 2011 06:34 PM
rodrig.diaz3
ECU Flash
14
Mar 26, 2009 09:30 PM
Muramasa
Evo Engine / Turbo / Drivetrain
2
Mar 8, 2004 03:21 PM



Quick Reply: Code P0300



All times are GMT -7. The time now is 09:19 AM.