crazy vtec please help!!!!!!!

[JF868849]

Ok I've got a eg coupe with a f20b dohc vtec with a h23 tranny stock motor ok so down to the problem when the motor/car is cold it pops vtec fine but when in warms up after like 5 mins it does not pop vtec at all?? Please any help would be greatly appreciated o and im running a p28 thanks

[EmminoDaGreat]

oil pressure, dented oil pan, bad wiring, bad chip, bad solenoid etc ? vtec shouldn't work cold.

[JF868849]

My oil pan is dented could that really cause it? Do you think whatever its doing could be harming my motor?

[RBS]

ran out of vtec kernels

[JF868849]

ran out of vtec kernels
What are you talking about?

[JDMDA_1.7]

oil pressure, dented oil pan, bad wiring, bad chip, bad solenoid etc ? vtec shouldn't work cold.

x2

[b20vtecrr]

ran out of vtec kernels?????????????? horrible joke bro lolssssssss

[b20vtecrr]

ran out of vtec kernels

def not needed

[4g638u]

yes a dented oil pan will cause it, what your problem is is that when your oil is cold it is thicker and your oil pressure is rising above 50 psi. when it heats up the viscosity changes as does your oil pressure, and with a dented oil pan the pickup may not be getting enough flow from the sump or it could be bent, i have personally seen that happen twice on honda's.

this is dumb, but also check your oil level.

as said before your vtec should not be working when the engine is cold, the gauge should be about 1/4-1/3 up off of the cold mark to allow vtec to operate, unless you have a vtec controller or other hackjob.

if you do not have an oil pressure gauge, i highly recommend getting a cheapo sunpro that you can connect temporarily in the engine bay just to make sure that your pressure is up to par, dummy light wont come on until pressure is stupid low, iirc less 5psi or so

check all your sensors and wiring, make sure there are no broken wires or shorts etc..., if you find no problem there i guarantee that your problem will be revealed with oil pan removed, trust me i almost tore a b20vtec completely apart because of low oil pressure and it turned out the pickup was a little bent

[JF868849]

Dang thanks man for all the help.I start trying different things

[Cynical 1]

ran out of vtec kernels

vtec fluid is low.

[JF868849]

vtec fluid is low.

Boy you guys are just to silly please keep the bs to yourself and thanks to the guys that are actually answering me seriously

[94_teg_ls]

since the motor didn't come in your car it could be low do a oil change mark your dip stick its probably got some tilt and you will not get a right reading

[RBS]

clean your vtec oil screen and make sure you have good connections

[EmminoDaGreat]

I have fought many a vtec problems when overlooking a simple dented pan.. And vtec fluid = oil.

[Cynical 1]

And vtec fluid = oil.


someone gets it!!!

i'm with the oil level being incorrect, or oil pressure being too low once it warms up.

[CaTcH22]

I have fought many a vtec problems when overlooking a simple dented pan.. And vtec fluid = oil.

x2!! I learned my lesson too, if the pan is dented I wont go any further. lol

[JF868849]

Thanks guys for all the help I bought a new oil pan and pick up tube from mike johns aka h22 johns this weekend im gonna put it on tomorrow and see what I get

[JF868849]

Thanks to everyone that responded I fixed the problem it was the dented oil pan put another f20 oil pan on it and it pops perfect everytime now

[CaTcH22]

:goodjob: