 So, I'm doing a manual test. I've got, with the sensor out of the canister, I've got a hose attached to the sensor. I'm supplying pressure vacuum and making sure that it sweeps. Okay. It changes values. Yeah, sit tight, Bill. I want to come back to this. I've got an idea in my head. I think our problem's in the canister. And I want to talk about that O-ring seal, too. So, don't go anywhere. I'm Ron Ananyan, The Car Doctor. We'll be back right after this. Don't go anywhere.