A lot of owner for the 4AGE 20V will wonder when the VVT actually activate. There are not many products in the market that able to tell the owner when VVT is activated. Even there is a product, it will not cost cheap and it is not worth to buy a product which only for display purpose or less function. However there is a cheaper way to DIY (do it yourself) VVT activation indicator.
Basically, this shows that how we can install a LED as an indicator when the VVT is activated. The VVT will activate from 1500 rpm till engine redline. This is good to show that whether the VVT system is working or not.
Continue for the picture that show how you connect the wiring.