h22 not hiting vtec

[ricedoutcb7]

i got a h22 swap in my accord and it wont hit vtec it was fine yesterday but today i went to race this firebird and it didnt work and it has oil

[NAiL05]

1. Any CEl.
2. How long have you had the swap
3. Is everything hooked up right
4. What ECU are you using.

[blackcb7]

^^^^x2

was it warmed up?up to operating temperature?
check the wires that go to the vtec solenoid, pressure switch and to the ecu

[ricedoutcb7]

it is warmed up everything is hooked up right the swap been is for a few years

[blackcb7]

try cleaning out you solenoid and switch assembly, there is a diy for it, so no cel?

[ACCORDEX92]

do you change your oil like your suppose too... maybe your v-tec solenoid no good or your v-tec filter is really dirty

[timmy0tool]

again, any CEL (check engine lights)?

[JDMH22ACB7]

cei? we dnt know... however the coolant temp. sensor, if it is bad or the wire is cut or dissconnected in any way will cause it not to engage VTEC through the ECU. try that, if i recall right that brought up a cei, as did dirty or bad VTEC solenoid. hit us back with more details like any work done to the car and when and howoften it doesnt engage.

[flight50]

vtec engagement isn't temperture sensitive. you reach the appropiate rpm and it kicks in. at least thats how mine work, unless there is some different vtec mode i am unaware of. although i don't dog my engine until its up to running temperture.

[cannedcb7]

^^^actually vtec is temperature sensative.
it protects u from messing up your engine.
and vtec should NOT engage until the engine is at operating temperature.
unless u have a chipped ecu.

[blackice]

^^^actually vtec is temperature sensative.
it protects u from messing up your engine.
and vtec should NOT engage until the engine is at operating temperature.
unless u have a chipped ecu.

x2, read this http://www.cb7tuner.com/vbb/showthre...ht=vtec+engage