p300 not a simple answer 1996 dodge ram 1500 4x4

Discussion in '2nd Gen DIY' started by 96liftedram, Mar 27, 2017.

  1. 96liftedram

    96liftedram Junior Member

    Posts:
    2
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    Joined:
    Mar 27, 2017
    Ram Year:
    1996
    Engine:
    5.9 360
    Truck has had this cod since i bought the damn thing here's a list of what I of what I've done so far

    new tie rods
    linkage
    steerning stabalizer
    spark plugs
    wires
    oil change
    cap and rotor
    o2 sensors
    tranny flush
    transmssion filter gasket
    water pump
    oil sensor
    belt
    new timing chain
    timing chain gasket seal
    plenum gasket
    harmonic balancer
    intake gaskets
    valve cover gaskets
    pitman arm
    oil pump
    oil reciever
    new oil pan gaskets

    I've done all this on my off time over the last couple weeks just got the engine back together today and bam CHECK ENGINE light P300 :(

    Im going to check the catalytic converter and vacuum when I have more time

    Since I've put it all back together it runs like a monster, any imput would be great

    *** side note after I clear the code I can drive for MILES (30+) and the light wont come one its only after i turn the truck off then got to drive it again that it will turn up ( this happens everytime before and after the overhaul)
     
  2. yoda

    yoda Senior Member

    Age:
    48
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    288
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    Joined:
    Jul 25, 2016
    Ram Year:
    2015
    Engine:
    6.4 Hemi
    Did you do a compression test?
     
  3. Shadow_Death

    Shadow_Death Senior Member

    Posts:
    149
    Likes Received:
    12
    Joined:
    Feb 13, 2017
    Ram Year:
    1996
    Engine:
    5.2L Magnum
    What Yoda said and I noticed you didn't have ignition coil listed in there. Any idea how old that thing is? They are easy to overlook when doing a tuneup.
     
  4. dapepper9

    dapepper9 Senior Member

    Age:
    22
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    4,834
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    Joined:
    Feb 7, 2013
    Location:
    Iowa/Nebraska Border
    Ram Year:
    2001
    Engine:
    5.9L V8
    P0300 as in multiple misfires?
     

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