Hi, I have an 89 crx si with d16y7/z6 head with p29 pistones

I get code 22 at high rpm's around 5k -7k......(vtec oil pressure)...

recently I noticed that my coolant was smelling like oil, my overflow coolant tank was getting filled all the way up (too much pressure in the cooling system) and the CEL was comming on.. (at high rpm'w)


some info:
oil is clean..
at low rpm's the car runs like a baby...
The car doesnt smoke white or blue

I know that I have to change my headgasket... but my question is:

Can this code 22 be related with a bad headgasket....? like it makes sense but I dont know if has happened to anyone......

 

wow thanks for nothing H-T