[chimchim]

More thought:
I halfturn the key and it lights up (very very brightly by the way) along with the battery light etc...

If it's VERY VERY bright, like brighter than you normally see an LED light up, you are probably over driving current through it somehow. This means that there isn't enough series resistance with the LED. This can be due to either: the resistor is too small and so too much current is flowing for the LED rating (where did you get the LED? Most RadioShack LED's are rated at 20-30 mA which for a 12v source means you want about ~300-600 ohm resistors). Or, you've hooked up the LED and resistor in parallel (or shorted the LED) which is a very bad thing. Check your connection.

Then when I completely start the car, it doesn't turn off, it just gets really really dim..and hard to see unless its night time.

This sounds like one end is floating (not hooked up or bad connection) or it's connected to a point of similar voltage.

When my VTEC kicks in (5900-6000 RPMS...is that late?) the light just turns off.

Means that both ends of the LED are exactly the same voltage. If Hazone is correct (which I assume it is), then when VTEC is on, that wire goes to 12v. Sounds like your other end might somehow be connected to power.

Just redo like Hazone describes:

VTECwire--------(+LED-)--(330ohm)--------chassis(which is ground)

So instead of it being off and turning on at VTEC, it is on and turns off when it kicks in. Whats the deelie oh yo?[/quote]