wHen i am drivein and revs go above 5000rpm the engine light comes on but sometimes when idrive slow and put the engine under load sometimes it comes on.when i did the test it said vtec failure.so i am wondering if the strainer could b blocked or if the vtec solinoid needs cleaning...help plz any sugestions

 

o i forgot i just changed the intake manifold to a skunk2 pro series...so i was wondering if that could affect it in some way