P0038 HO2S Heater Circuit High Voltage Bank 1 Sensor 2

can anyone help me out witht his on what it means...came on after spark plug install

 

bump anyone?

 

maybe change the Selenoid.

 

The CEL is saying its a problem with the heated upstream O2 sensor leading off the cylinder head...check to make sure the spark plugs you installed are the corect type and are torqued to spec for starters.

 

ok here is the wierd thing...i cleared the codes the same night i posted this...it stayed off for the night then came back on the next day and stayed on...BUT when i went to go fill up my gas tank it turned off the code after i started it back up and hasnt come on since...you think it was just the new plugs adjusting?