do i need to fix the other head gasket??

Question

i replace the head gasket on bank no. 1 only now i have code p 1309 , i ready do correct aligment , and replace cam sensor and crank sensor

Answer 1

P1309 Octane adjust

The shorting bar for the octane adjustment is missing. It is similar to the inline spout.

 This connection here is for the timing adjustment. they call this the spout connection, There are 2 similar connection for P1309 this is for the octane bar missing, just reinstall the octane bar.