About a week ago my check engine light came on for the first time. I thought nothing of it until it started to flash one day and I noticed my durango running rough. I ran a diagnostic tool and 5 codes came up.

P1281, P0300, P0305,P0307, and P0308.

Since this has happened I've had my Fuel injectors cleaned, oil changed and cleaned my spark plugs.

Any idea what it could be with these readings?

 

the last 4 are misfire codes which is why the CEL was flashing, it does this whenever it detects a bad enough misfire, its a warning to shut the engine off before it causes any damage.

I would start by replacing the plugs (all 8 of them) with champion copper core plugs gapped to .040

as for the 1281 that is the engine taking too long to heat up, probably a thermostat stuck open, not knowing which engine you have this is all the details we can give.

 

i had something like this on my 5.9L.

i replaced all the wires and plugs and still did it.

then i replaced the coil pack. thats when i noticed the outside shell on the coil pack was cracked, and most likly some moisture got into it.

so yeah, try replacing the coil pack.

 

I have a 5.2 98 Durango. I'm gonna replace the coil pack when I get paid Friday. Looking around online it explains alot of the problems I've been having.

 

Replaced the coil and problem still remains.. gonna check my cat and IAC I guess.. seems to be getting worse as I drive. I can feel it missing bad as I'm driving it doesnt' want to gain speed.

 

open the hood and run the truck at night, my guess is that you see arcing wires.

i would REPLACE the spark plugs, wires, cap and rotor (champion copper core plugs, cap/rotor w/ brass contacts, good quality wires, 8mm is recommended)