8th gen accord 2.4 petrol k24z3 vtec or VTC issue...
 

Hi all, car was recently bought from person who import cars from abroad car is located in europe so its for european market engine code k24z3 manual gearbox accord,
Oil and filters are changed less than 1000 miles, 0w 20 oil ravenol, with wolfram additive. my question is car is extremely slow,
vtec doesnt kick vtc as well,
car is feeling like 100 hp, no checks no dashboards or error messages... filters are changed oil as well,
according to the several shops , car have been sitting for very very long time, due to this probably it was driven with bad terrible fuel,
right now when car is driven on a high way strange noise is heard from the front i am guessing injectors - it sounds like or simular to raining, car is with fresh fuel , but it doesnt help, also what additives should be used will they help or petrol fuel filter should be definetely changed?
IF vtc is blocked due to previous bad oil and other things can it be fixed or it need to be replaced from scrapyard?
Also when car oil was changed oil was very black and burned also car buns oil no idea how much yet. since it has not been driven more than 400 miles since last oil change.
i cant verify or see when was the last oil change since the car speedo was clocked so no idea how much miles it into the moment the car it self.

Any helpful information will be great or advices.
Should i try amsoil p.i and other additives will they help ?

Bought used and no service information done on the vehicle??
Don't know what it could be. But, a big guess would be the oil screens are clogged on the Vtec???

Unfortunately no service information and no way to know when was last or done services etcs...
how these oil screens be unclogged please advice?

When the engine doesn't get the proper maintenance, the oil screens can clog up.
This reduces oil pressure and the valves do not operate properly.
The end result is less power and lower gas mileage.
A check engine light might also accompany this.
Youtube has many videos on how to change or clean these screens out.
This may or may not be your issue.
Possible it could also be the solenoid?
Watch the videos. Understand the process or steps involved.
Decide whether you should attempt this procedure or not.
Good luck.

Car also have high FUEL consumption , very high so its possible that to be the issue i am not mehanic my self , can it be fixed with additives to the fuel or oil?