P0351, P0353, P0355, entire bank of ignition coils failing at once?

Im throwing these codes and it seems unlikely that the entire passenger side of ignition coils would fail at once but maybe i'm wrong and they tend to fail together? Or am i right and it seems likely it would be something else going on? if so, any suggestions to what it may be?

 

Do as pressure leak down test. I would suspect a head gasket.

 

Those are coil circuit codes, they have nothing to do with engine mechanical.
OP I'd look for rodent damage in the engine harness.

 

If anyone in the future finds this it turned out to only be a burnt out coil on cylinder 3. Once I replaced that coil the codes for all three cylinders went away. Why were the other codes getting thrown? Who knows. Took Toyota 2 weeks to get me my coils, so I probably worth having a spare one for when one burns out you're not stuck waiting.

 

@Buttermilker .. Having this exact issue. Appreciate the info. I shall start with a new coil. I assume coils A C and E are the passenger side correct?

 

Yea

 

Bought an $18 aftermarket coil.. replaced cylinder 3.. same issue.. tried cylinder 5 instead and so far so good . Thanks