Chosen Solution
I had water damage a few day ago, it was completly dead, the water got by the BIOS Chip, I clean it with alcohol and turns on now. Since that happened, the computer is doing werd things. -When i connected to the MegSafe it turns on by itself (with battery connected and lid close only). -When I run APPLE HARDWARE Diagnostic I get the error 4sns/1/40000001:VPOR-0.003 -When is off with battery connected and I touch by the mousepad it wil tunr on by itself. Thank you in advance
Some sort of Voltage problem power bus ‘’(from your description you should have already surmised this)’’ . Sorry I can’t be more specific. 4sns is at the beginning of every sensor error the data at the end of the error code points to what hardware that is out of spec, and, numbers usually represent how far out of spec the hardware is. Did you run the diagnostic with the magsafe connected or on battery only? Some power errors come up if the unit is not plugged into the mains during the test (or if in your case the main power supply is unstable). If this answer is acceptable please remember to return and mark it accepted.
I have a similar problem but ca not find: apple error 4sns/1/4000000:vpor-12.764
