I'm gettin error code 21-22-2. I checked to make sure the vtec solonoid work and its good. Still gettin the error code and check engine light.
If I start the car its fine after about 1-2 mins check engine light comes on No more vtec. I shut the car off and start the car again and vtec is back on then I drive for about 10-15mins and it goes of again.
Checked all the wires everything is good. So wat can be causing this????

 

have the same problem

did u opend the pressure valve ? checked the screen and other parts inside the valve ?