As of today, 4 members have this problem. My mechanic missed with all 3 censers to find out the problem was. Tthe steps he took.
1. Remove the oil cap, if oil comes gushing out...try to put it back on and turn the car off. i.e. Bonnie is down for awhile.
2. If the oil is not spraying everywhere, good, move to the censer. As for the location, yes its under the car.
My censer was located near the pan and looked like an olive green 3/4 nut. He simply screwed out the old and replaced it with a new one. He also told me that if it was at 120psi that the engine would have a slight ping sound to it.
It cast me 60 bucks for the censer and it works great! Good luck.