oil sending unit/vtec engagement

[gwilliams41]

i am curious if i take the oil sending unit out and replace it with a maunual unit will this effect the vtec engagement. guess i am just curious if the vtec engages off of the oil pressure its self or if the sending unit has to send a reading to the computer first. thanks

 

[gwilliams41]

oh yeah its a 1993 gsr with a b17

 

[cboe90DA]

here u go this is how it works

http://www.youtube.com/watch?v=fDCoHT-ja_Q

 

[cboe90DA]

so if you take out the sending u will not get oil pressure to lock in the rocker arms to run ur valves open for longer

 

[cboe90DA]

and ur ecu tells the silanoid when to open not the oil preasure

 

[gwilliams41]

thanks for the help on that so i guess the sending unit sends a signal to the ecu when enough oil pressure is available to engage the solenoid??

 

[cboe90DA]

thanks for the help on that so i guess the sending unit sends a signal to the ecu when enough oil pressure is available to engage the solenoid??

no the ecu send a sig to the vtec selinoid opening the flow of oil/oil presure to lock the rocker arms all together in the head. then the valves all run on the vtec lobe on the cams opening the valves for a longer time