Hi Everyone, just wondering if this was ever resolved. I've read through probably all of the VANOS related thread and cannot seem to find a resolution for my car. I'm getting similar symptoms for code 72. Swaped boards, resoldered all joints, replaced diodes, replace solenoid rings, beisan rings, cleaned all ports on the VANOS unit itself, and installed new CPS (all 4). I'm still reading error 72. One thing I still have not done is swap the VANOS units. Just wondering if there is anything else I should check. Thanks. This is driving me crazy.