vtec making engine bogg

need some help, i got a b16 in my 92 DA my vtec has been working perfect until yesterday…wen i was just cruising i hit vtec and my car just lost power like it started bogging out…now wen ever i hit vtec it does it…i checkd for oil and im good any ideas guys,thanks

check the ignition module(ICM) had same problem. Replaced and was good. Also check to see if your tach is bouncing around.


thnax 4 da info ima deff. check it out