2016 silverado p0300 random misfire and O2 sensors

[chevyguy2748]

I drive a 2016 silverado that i just recently brought as a salvage title for a good deal  not under warranty ... recently as i was driving the truck felt a lack of power and it was late shifting like it didnt know what gear to go into next then the stabilitrac light along with a CEL the truck started misfiring When i took it to get the codes checked i did have multiple misfire code P0300 along with emission codes P0030 P0031 P0050 P0051 P0135 P0155 P0157 anybody have this issues? The truck was running perfect before 

[Bash74]

You need to check for vacuum leaks first, then fuel pressure. If vehicle is running lean it can cause problems with cats and o2 sensors

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[tbarn]

Those are all heated oxy sensor codes. Issue with the heater portion not oxygen sensing. Look for a power or ground issue .Power from underhood fuse box. Ecm grounds as required.