The truck runs fine,dont have any strange noise. high RPM noted at WOT the engine brakes up around 3500- 4600rmp and wont hit redline therefor wont shift gears either. Check engine light will flash, then release the gas it will shift...

i just checked valve spring compression, its seems to be fine, all thw springs move up and down in the same way
changed fuel pump and injectors
checked fuses and harnes
checked throttle pedal and body
changed all 16 spark plugs

and just p0300 on scanner

please if someone can helpme, i dont what to do with the truck anymore

 

Is the motor/electronics still stock?

 

yep, i checked the lines and everything looks oem

 

What spark plugs did you install, and if the problem was there before you changed them, what plugs did you take out?

 

i don’t have the exact numbers of the spark plugs but the truck had champion, and i put copper ngk

and yeah, the truck already came in with the issue, and still with all the parts changed the problem persist

 

Hhhhmmm.... Did you reset the computer after changing the various parts? Does the problem present itself immediately, or only after the engine has been running for at least a few minutes? (probably really hard to test that one..... might consider unplugging the front O2 sensors, and going for a drive, and seeing what happens, but, at WOT, the computer should be ignoring the O2 sensors in any event....)

 

Sorry, not gettin you, by reset you mean clear all dtcs? Because, i already did that everytime.

and yes, the peoblem is inmedialty, no matter if is cool or hot, it just do it when yo press the pedal to the floor.

i can send you videos of testing if you want, im really concern about this

here is my number
9934147431 whatsapp