O2 heater circuit CEL's

[jimmyp3353]

Got my car back from the tuner after long tubes and cam. Car drives great and has lots of power only it keeps tripping codes P0030 and P0050 for both front o2 heater circuits (I find it hard to believe that both o2 sensors are bad). Is there I fuse on this circuit that could possibly be popped? I looked at the under hood fuse box but could not find anything.

[LDM]

Underhood F33, the Emission 1 fuse, powers both front sensors.

[jimmyp3353]

Thanks bud!

[Indypete]

Old threads are handy! Had this code, found the popped fuze and found this under the car:

IMG_20150905_171808.jpg

The wire for the O2s had worked their way down and melted on the headers.