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p300 not a simple answer 1996 dodge ram 1500 4x4

This is a discussion on p300 not a simple answer 1996 dodge ram 1500 4x4 within the 2nd Gen DIY forums, part of the 2nd Gen : 1994 - 2002 category!
Truck has had this cod since i bought the damn thing here's a list of what I of what I've ...

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Old 03-27-2017, 11:20 PM   #1 (permalink)
96liftedram's Avatar
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Join Date: Mar 2017
Posts: 2

Ram Year: 1996
Engine: 5.9 360
Default p300 not a simple answer 1996 dodge ram 1500 4x4
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
steerning stabalizer
spark plugs
oil change
cap and rotor
o2 sensors
tranny flush
transmssion filter gasket
water pump
oil sensor
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)

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Old 03-28-2017, 12:37 AM   #2 (permalink)
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Age: 48
Posts: 276

Ram Year: 2015
Engine: 6.4 Hemi
Did you do a compression test?
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Old 03-30-2017, 11:36 PM   #3 (permalink)
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Join Date: Feb 2017
Age: 33
Posts: 135

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.

1996 Dodge Ram 1500 5.2L

Plenum Plate fix with Fel-pro gaskets
NGK V-Power plugs
MSD 8mm Wires
MSD Blaster Coil 8228
Accel Cap and Rotor

After Market Tow Mirrors (Don't care for the flip up but I'm happy they don't try to show me my own reflection)
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Old 03-31-2017, 12:49 PM   #4 (permalink)
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Join Date: Feb 2013
Location: Iowa/Nebraska Border
Age: 22
Posts: 4,740

Ram Year: 2001
Engine: 5.9L V8
P0300 as in multiple misfires?


2001 Ram 1500 QCSB, 2" HBS level 285/70/17 Toyo OpenCountry AT2s, M1 2bbl, F&B 52x55mm TB, Pacesetter Longtube headers, CarvenTR, M1 91 Octane canned tune by FlyinRyan, 4.56 gears+Eaton TrueTrack remote start, HS 1.7 RRs, Custom RetroFit 6500K HID
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check, engine, missfire, p300, ram

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