after the swap was installed it worked fine till about three weeks ago. no vtec, im running a b20 vtec, it always worked fine, so i went through the normal stuff, changed oil, checked pressure, checked oil lines, no cel's, then i check the oil line from block to head and the oil pressure is normal, took out vtec pressure switch and i got NO pressure reading at any rpm. so i unhooked the oil line from the head that feeds vtec and sprayed in carb cleaner through the port for the oil,and blew air through to free any particles, well when i blew the air through i got a pressure reading on the pressure guage, but when the oil line is hooked up i dont get any pressure??? i am completely confused!! PLEASE HELP MY VTEC!!

 

Check all the wiring for your VTEC solenoid.

 

did that we even ran it straight to the battery and it was popping fine, we ran the car and revved it up to around 4k and jumped the solenoid from the battery and it popped but wouldnt engage vtec. i was wondering why i wouldnt be getting any oil pressure to the vtec pressure switch. theres oil going to it but its not pressurizing at all.

 

??

 

any ideas??

 

anybody?? ideas??

 

Have you verified flow to the solenoid?

 

ya i took the feed line off and it has 30 psi at idle and matches the guage inside as i rev. i blew air and carb cleaner through the port i have it feeding to, and everything came out of the feed hole fine to the solenoid.