P0300 CODE

[FlyingA]

I have a 2016 Ram 2500,6.4, 4x4. I was building a rear bumper for it and removed the stock chrome bumper. I disconnected the trailer connecter and snipped the wires to the plate lights. During the build I needed to drive the truck. When started everything seemed normal until I put it drive and pulled away, the engine began to buck, rev then die. I could restart the idle seem fine, I could rev up, but seem like the engine would die. I could keep it running with accelerator peddle, but it wanted to quit. Made it back home....OK . So code reader shows me this code. Truck has 28,000 miles, very well maintained and after reading forum reactions ( and very,very many from different forums) I could'nt belive that any of the answers I read fit my problem. My scanner is a very top line product and showed everything was working just fine. I run a Flowmaster catback exhaust with Supertrapp tips for back pressure, So I was wondering if it was effecting the cats.? I wanted to finish the bumper and then I would work on the code problem. Well after reading all the CODE P0300 problems on the Forums,I was feeling pretty low trying to track this down. Anyway I connected the license plate lights (and the trailer connector, which I don't belive effected the code) The truck runs beautiful!!! After all the Forum readings I had read, this situation had never been brought up. So hopefully this can help some folks out. P0300 can be a PITA.

 

[Wild one]

I have a 2016 Ram 2500,6.4, 4x4. I was building a rear bumper for it and removed the stock chrome bumper. I disconnected the trailer connecter and snipped the wires to the plate lights. During the build I needed to drive the truck. When started everything seemed normal until I put it drive and pulled away, the engine began to buck, rev then die. I could restart the idle seem fine, I could rev up, but seem like the engine would die. I could keep it running with accelerator peddle, but it wanted to quit. Made it back home....OK . So code reader shows me this code. Truck has 28,000 miles, very well maintained and after reading forum reactions ( and very,very many from different forums) I could'nt belive that any of the answers I read fit my problem. My scanner is a very top line product and showed everything was working just fine. I run a Flowmaster catback exhaust with Supertrapp tips for back pressure, So I was wondering if it was effecting the cats.? I wanted to finish the bumper and then I would work on the code problem. Well after reading all the CODE P0300 problems on the Forums,I was feeling pretty low trying to track this down. Anyway I connected the license plate lights (and the trailer connector, which I don't belive effected the code) The truck runs beautiful!!! After all the Forum readings I had read, this situation had never been brought up. So hopefully this can help some folks out. P0300 can be a PITA.

Now you know not to randomly cut wires,bet you won't do that again

 

[GTyankee]

cutting unknown wires ??
I have not done that on vehicles since before 1970 Chargers were NEW

If it has a computer, CPU in it, its best to know what you are doing

 

[Sillygoose]

more importantly, how many discs you got in that supatrappp ??

 

[FlyingA]

Random cut wires? I had said "SNIPPED THE PLATE LIGHTS"(license plate lights). I agree DON'T randomly cut wires. As for the Trapps... 16 discs each side.

 

[62Blazer]

P0300 is a random misfire detected, which matches the symptoms noted. There are codes P0301 - P0308 which would pinpoint misfires of the specific #1 through #8 cylinders that don't always pop up.
I never would have guessed disconnecting the trailer plug or license plate light would have anything to do with those symptoms or codes. The only thing I would even guess is that for some reason you had low battery voltage which could cause that type of issue???

 

[Burla]

You didn't just snip that wire, but every wire on that circuit, and you shorted them, snip one they all fail. I'm surprised there isn't more codes, or a more specific code. I had a shop do something similar once back in the day, burned out three transfer case motors til they figured it out. They put a new t case in, I'd engage, boom short wasn't fixed. Dealer figured it out I had to sue the shop. Simple installation of a step that drilled through a wire led to a whole lot of pain.