3.6 Pentastar oil pressure sender woes.....

Well F me running. The CEL came back on with same code. This happened right after an oil change. Did I get some bad oil? Can the motor tell the diff between 5W-30 and the 5W-20 that ended up in there (it was in the 5W-30 slot at the store) Ill change the oil no problem but that seems suspect that it happened right after the (thin) oil change. Kinda makes sense that it only went on after warm up as both oils are 5W cold. "A 5W-20 and 5W-30 will have very similar if not equal viscosity at lower start-up temperatures. But as the engine heats up, the 5W-20 will move with less resistance than an 5W-30" Bingo.....Now to get some 5W-30 in there.....and cross my fingers that fixes this.