jdmasfuk

I have a 00 honda civic si with the stock b16a2 bone stock and vtec is not engaging i have no cel either.. oil level is good i just did an oil change ive tried searching and couldnt find much.. any ideas???

00EckoSI

ive noticed that if the engine is cold like on start up it wont kick in untill it gets to temp it just started to do that on mine but i have only had it for a little over 1000 miles so i dunno if it is supopsed to be like that or if the selnoid for the vtec is going bad

jdmasfuk

Yea I no it has to b warmed up.. If the selinoid is bad wouldn't it throw a code?

blackcracker

clean the gasket behind the solenoid.

CRXREFIC

yea just take the solenoid out and check it over

jdmasfuk

i just checked the solenoid all looked good i cleaned the vent anyways and put it back together and still no vtec any other ideas?

00EckoSI

your probably going to have to replace the solenoid

jdmasfuk

Wouldn't it set a code if it's bad?

mortificationrock

Grab a wire. And run it from positive side of battery to the solenoid clip. (take the clip apart) and see if it clicks. As soon as you give it 12v it should click. If it dont then the solenoid dont work. Also what ecu are you using?

shogee

yes it should set a code if it is something electrical is wrong, but like said the engine needs to get up to operating temp before it'll let vtec engage, you probably need to check for oil pressure up to the solenoid

Got traction

so here is what i would do....

1. put 12v to it to see if it clicks. if it does you know its good

2. then check to make sure the pins for vtec are locking. there is a service port you can blow air into with a compressor and it should lock the pins. if they do not lock then the head is messed up.

3. if that checks out okay then you need to find out if the ecu is sending the solenoid a signal. dyno is the best place for this. use a meter and see if a 12v signal is sent when it is suppost to cross over

Spooled91

check your oil! lmfao ... ive seen peoples vtec not work cuz of low oil ....

jdmasfuk

would bad spark plugs have anything to do with it?? my car has 80k mi with original plugs