i was changing my girls tire the other day and i noticed a plug on the transmission.  it is located on the drivers side.  and there are only 2 wires hooked into the plug.  well i unplugged it thinking it would change something but nothing happened.  drove it all day no problems.  what is that plug for?  it is an 02 2.2 ecotec
 
 
yeah i plugged it back in.  i just did not know what it was
