Malfunction Light Indicator - DodgeForum.com



2nd Gen Dakota 1997 - 2004 Dakota's

Malfunction Light Indicator

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 08-03-2013, 02:48 PM
Edgybob Edgybob is offline
Registered User
Thread Starter
 
Join Date: Aug 2012
Posts: 22
Default Malfunction Light Indicator

My 2003 Dakota has started showing the Malfunction Light Indicator, the little engine icon.

According to the owner's manual this has something to do the emissions system.

Anyone have any experience with this?
Reply With Quote
  #2  
Old 08-03-2013, 03:04 PM
00DakDan's Avatar
00DakDan 00DakDan is offline
Section Moderator
Dodge Forum Moderator
 
Join Date: Dec 2010
Vehicle: 2000 Dak Sport CC 4.7 5 speed 4x4
Location: MA
Posts: 4,088
Default

Hi. I moved your post into the proper forum.

What engine and transmission do you have?

Check for codes. Starting with the key off turn it to run (not start), then off, run, off, and finally leave it in run.

Any codes should display in the odometer window.
Reply With Quote
  #3  
Old 08-03-2013, 04:31 PM
Edgybob Edgybob is offline
Registered User
Thread Starter
 
Join Date: Aug 2012
Posts: 22
Default More info

2004 Dakota. AT, 3.7L V6
Code: P0240

Catalytic convertor operating at below efficiency.

Anyone know what this may mean, as far as cost or fix?

Thanks.

Last edited by Edgybob; 08-03-2013 at 04:34 PM.
Reply With Quote
  #4  
Old 08-03-2013, 05:59 PM
00DakDan's Avatar
00DakDan 00DakDan is offline
Section Moderator
Dodge Forum Moderator
 
Join Date: Dec 2010
Vehicle: 2000 Dak Sport CC 4.7 5 speed 4x4
Location: MA
Posts: 4,088
Default

Your converter may be bad.

The PCM looks at the input/output from the O2 sensors to make this determination. It is possible that they are getting slow, it happens as they age. Otherwise, you're changing your converter out.

You might try a nice long and fast trip to get it up to temp and burn off any contaminants, if you do a lot of short trips it might help.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2003 dodge ram b1500 v6 3.9l Ronald_Arif Dodge Ram Van 4 10-07-2015 03:16 PM
Are Codes 17 and 41 something or nothing? SteveR Dodge Ram Van 5 07-23-2015 09:05 PM
turn signals stopped working but 4 ways worked BrandonBuc'em 2nd Gen Ram Tech 4 07-15-2015 02:02 PM
Odd Front Left Turn Signal Problem on 99 Ram 2500 kenb1023 2nd Gen Ram Tech 2 07-06-2015 01:44 PM
Buzzing noise when right directional is on barrd70 2nd Gen Dakota 0 07-05-2015 02:23 PM


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -4. The time now is 08:30 AM.