well i got my vtec controller installed...everything lights up and works good on the controller and it looks really cool with all the settings...BUT i have no vtec now? he said there must be a wire that is not hooked up right...if any1 has an advice lemme kno..when i floor the gas the rpms fly up like normal....but vtec never kicks in...its like its not there...and then finally at 6000rpm's throttle cuts off and tcs&check engine lights come on...but then u disconnect the battery and they both turn off....so the car runs perfectly normally if i dont go up to where vtec should engage....plz gimme some advice...the guy said he will check everything and rehook it up 2morrow
thnx guys
-99 TL

 

Damn that sux. No VTEC is blasphemy.

Hope you get it fix asap.

 

No VTEC on the TL is like not driving a TL at all. Hope you get that fixed soon

Tatewaki

 

Maybe check ur IRMC...but does sounds like something with the VTEC controller.

 

not sure if your vtec controll is the Apex'i vafc
if so, make sure all wires are connect properly..
at your initial setting, set the Vtec engagement point @ 4300RPM
thats when stock vtec comes on a 99 model. test your car to see if vtec kicks in. also try monitor the "vtm" and "vto" when you drive your car.
Vtm is the stock vtec signal send to the controller. the Vto is the modified signal which send back to the engine by the controller.
If you set vto to 4300rpm, both vto and vtm should be ON when you reach 4300 which means your vtec is working. hope you understand my BS.

 

Hey, I'm new to all this stuff... What does a VTEC controller do?

 

dam UA5....u kno ur **** =) ill try that out as soon as possible...thanks alot and check your PM.
-Eric

 

Why would you want to get a VTEC controller? I thought Honda has already programed the VTEC at it's optimum, so having it might just be a waste of money?

 

The V-tec isn't tuned for optimum performance, it's tuned to give better gas mileage. If you ever see a dyno graph there is a dip in power before V-tec. Most shops will lower the V-tec poing slightly to increase midrange HP....

Charles

 

heh wrong. The stock vtec is already programmed for optimum performance. Lowering your vtec engagement can actually cause a LOSS of hp without proper tuning.

 

Well sort of, it will actually "smooth out" the torque and hp curve. There is a big spike when VTEC kicks in and the VAFC will help to smooth it out. As far as hp, it adds maybe 2-3 hp.