Thank God someone has finally come up with this great idea!
I had BIG dramas trying to pin point the stuffed coil pack a few months ago.
Every time the coil started to play up i would pull over turn car off and attempt to pull all the stuff off like cooler piping etc then it would run fine Grrrrrrr. Took my 3 months of drivingit around running great till it warmed up. Such a pain in the ass!
Might have to give this a go
Here are a few of my pics
All pics taken over here in W.A
Pic1 taken from south mole
Pic2 taken floret drain
A wicked pic3 taken while "hammerd" at gods kitchen (Metros city)
Pic4,early morning busselton jetty