code po 300 -

2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

code po 300


Old 11-11-2009, 08:59 AM
edcalli is offline
Registered User
Thread Starter
Join Date: Nov 2009
Location: ohio
Posts: 8
Default code po 300

I have a 96 Dodge ram 1500 5.9l I had code po 300 come up( Random Misfire) and i was wondering what would cause that code other than
Plugs, wires, roter, distributer cap, and coil. I have changer and or checked all of these and it has not resolved the issue. we also cut the cat off to see if that could some how be the issue unfortuantiallyit was not. The truck will stat and run great for about ten minutes and then it will fall flat on its face, it will move at about the max speed of about ten if im lucky then it will stall and not want to start. any and all suggestions or ideas are welcomed, dont hold back I am at wits end and am looking for a new take. Thank you
Reply With Quote
Old 11-11-2009, 08:27 PM
dhvaughan's Avatar
dhvaughan is offline
Hall Of Fame
Join Date: Jul 2006
Location: Gainesville, Ga.
Posts: 12,205

plugs, wires, rotor..
severe plenum leak (lean and/or burning oil) are you fouling plugs ?
crank pos sensor, cam postion sensor, throttle position sensor.
o2 sensor (causing too lean or too rich). likely has more influence when fully warmed up and in closed loop mode. this might be your problem.

weak fuel pressure or stopped up fuel rail. check pressure.
faulty injector
cracked head - do a compression check.
Reply With Quote

Related Topics
Thread Starter
Last Post
Gone Fishin
3rd Gen Ram Tech
10-30-2017 01:30 AM
Dodge Caravan
10-20-2015 07:27 PM
Dodge Stratus
08-04-2015 11:05 AM
2nd Gen Ram Tech
07-28-2015 11:16 AM
Dodge Stratus
07-16-2015 11:22 PM

Thread Tools
Search this Thread
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

Featured Sponsors

All times are GMT -4. The time now is 11:22 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: