my vtec doesn't engage no more. so times it will but majority of the time it doesn't. and it also will enage and then disengage. and honda wants to charge 45 dollars just to tell me what wrong.

 

do u have a VAFC?

 

you might be losing oil pressure ....my .02

 

naw i dont got vafc. i havent checked the oil yet but i was told it could be the vtec filter or oil pressure.

 

its your oil pressure, it happened to me. does it happpen under acceleration and/or cornering?

 

dont know about the cornering but. this is how i found out. my boy wanted to hear my vtec this being the first time i gun it since i put the head back on. so i did and nothing happened. so i punched the gas 15 20 times after that and still no vtec. just sounds like a mean dx.then i go oto my other boys house to show him and 1st gear didnt come on 2nd came in but wasnt as loud as it should be. it was very faint.
3rd it came in then back out of vtec. then i did it again to see whats up it didnt hit at all

 

just trying to get all the bugs worked out before i turbo my baby next weekend

 

you are low on oil, go check the dipstick. as you accelerate oil is pulled from the ickup, it happened to me. toppedd off my oil and bingo, vtec bitch

 

let me go check and i get back with the results in a sec. i hope your right. thats less money i got to spend.

 

my oil level is just right

 

also, pulling the vtec solenoid off isnt that hard. couple of hours at best. if its not the oil then id check the wiring and the sensor, solenoid, etc.

 

what motor do you have? sounds like the screen on the solenoid could be clogged.

 

d16y8.

 

i'd pull the solenoid off and check it. do you have a multimeter? id check the sensor to make sure its not bad and possibly the wiring harness for the solenoid

 

i'd prob going to buy the screen and change then go from there.i swear if its one thing its another, something always keep me from running my car.

 

the screen is inside the solenoid itself, it can be cleaned.

 

do i got to replace the o ring or as some people say gasket

 

its all up to you, id say yes. just to be safe

 

pull the complete solinoid and see if there is trash in the screen that happen to mine once and oil wont let it by caused from clogging

 

Check your oil, I had the same problem when I had cracked rings in my si if your oil level gets low enough it will engage and disengage frequently. If that doesnt work take the seleniod off and clean the screen.

 

his oil level is fine, read ^^^^

 

sorry didnt catch that part, my bad

 

thanks for the reply guys will see what wrong tomm when i take ti apart.

 

well check the filter on the vtec solinoid it could be plugged, and also the temp sender that gos to the ecu might be bad cus the water temp needs to be at 160 i think inorder for it to engauge, but just give these simple things a look befor you rip in to her.

 

on my b16, vtec will kick in a little over 150*