Can anyone with datascan or consult confirm that the VVT solenoids always activate to 'on' when the throttle is opened and the car is in gear. This is how mine seem to operate but I thought they were only active at 5000rpm. Car runs fine but I'm curious.

that's correct.

 

their activation depends mostly on engine load.

As soon as the engine has to produce some power the solenoids will be activated.

 

they will be deactivated again as soon as you let go of the throttle and/or above a preset RPM (depends on the chip), but usually somewhere around 5000 rpm

Thanks for that.

Does this affect the warm up period? My VVT sprockets start to rattle if I leave the engine idling from startup for too long (the solenoids are off). But if I start to drive it almost straight away I get little or no rattle (solenoids on and off when changing gear)

Does this make sense? I've had a couple of beers!

>> Does this affect the warm up period?

 

another important activation factor, which I forgot to mention is vehicle speed.

If vehicle speed is 0 (the car is not moving) they are deactivated as well.

So that's probably why they start to rattle if you leave the engine idling (while standing still) and they are activated again as soon as the car starts to move.

 

their activation does not rely on engine temperature...(it does, but only in extreme cases, eg lower then -45 Celcius or higher then +105 Celcius)