Hello All,

I'll keep it a short as possible- 250k miles, I have taken good care of the truck, don't rag on it, tow my a 24' flat bed with it occasionally with toys on it. I started having a slight mis-fire and it has progressively gotten worse. These aren't the codes it threw in the beginning, it only showed a single cylinder mis-fire then, which I tried to fix to no avail.

Codes the truck has thrown in the last week:
P0303
P0128
P0300
P0305
P0307
P0301
P0315
P0320
(It's not showing all these now because I clear them after each attempt to fix but I figured I would include them all)

Fixes/replacements I have attempted in the last week:
-Sparkplugs, twice, checked if they were tightened multiple times.
-Coils over the plugs(COPs)-even put the old ones back in and swapped them about, no difference.
-Fuel Injectors, swapped them about as well, no difference
-Fuel pump control module
-Fuse 27 is all good and not blown and was never an issue
-Canister purge valve (tested it and it was stuck open so replaced)
-Both Camshaft position sensors
-Crankshaft position sensor

Still have a mis-fire, where do I go from here? I've read it's possibly the VCT Solenoids or intake manifold- I can do these both but wanted to see if there was anything else I could try before diving into these longer fixes

Also, I have a code reader that says it's capable of doing live data through an app on my phone but I've never tried it. If I need to run live data and share it here I can.

I appreciate you all, TIA!

 

Anyone?

 

Put in new VCT Solenoids and still have the misfire/stutter. Intake looks fine to me….

Any suggestions anyone?