I don't know for sure but its definitely possible. Test your PTU as shown in the FSM and see if it reads bad.

Question so I read your thred and I found out that my main ground by the 6 cyc next to TE balance tube was not on but screw in. Could this be why my whole left side is missing because I have fried my ptu? And could my right side still fire even with a friend ptu possible?