You should have tapped in on the rear of the cylinder head, same place we tap for the oil supply to the turbos.
It also gives a good indication of oil supply pressure to the heads.


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black