Hi, I just recently changed the block on my Ls-vtec, and now the vtec dont wanna work. I hard wired it to a 11V pwr source to activate the soleniod and it still don't want to work, I also swap out soleniods. Does the soleniod need a certain amount of volts, cause it does click w/ the 11V. My next step I think is to check the pressure on the oil line, but does anybody know what it should be? Thanks for your help...

 

yah on normal driving its about 5psi but when vtec occurs it pumps 60psi

 

does the oil pressure reach 60 w/out the vtec, or does it go to 60 psi when the vtec hits?

 

i beleive itll hit 55 without vtec comming ona nd its 12v source for vtec i think if that matters.

 

so you have vtec on the button. Vtec on the button only activates the solinod to poen up v-tec if your ecu is not Vtec you will not get the same fuel curves as a vtec ecu.

 

I have a b16 ecu, the thing is, Im still trying to figure out how to wire the oil pressure. till then I just wanted to check if the vtec worked by hooking it up to a switch. and it just don work, I also checked for that rubber ring under the middle journal, Im at a loss

 

55 psi is when vyec opens. also I dont understand is the vtec oil press sensor not wire up. have you checked the oil press. its easy. It just plugs into the vtec selonoig and then bam. check any honda VTEC manuel and it will show you how to do it.

 

My oil pressure sensor is not up cause I have a ls harness, and I still havent figured out how to tap it, I heard there it needs to be tapped in two placess to work

 

i had the same problem once when i switched my vtec oil supply line to a smaller size. everthing was working but the vtec wuld not turn on. when i switched back to the larger size everthing worked like it should. BaaaaaaAAAAAA!

try a larger line.

 

you know, I didn't change my oil line, but I did put another elbow fitting on the end of it, maybe the fitting is causing the trouble... thanks for your help