Cylinder Head Ground Wire

[CunningStunt]

So I'm doing my dad's cam and lifters on his 2015 and when removing the heads I noticed there was only one grounding wire attached to drivers side head at the back and it was wires coming from the harness. My 2014 had a metal grounding strap that wyed off to BOTH heads. Is this normal?

 

[Sarge172]

So I'm doing my dad's cam and lifters on his 2015 and when removing the heads I noticed there was only one grounding wire attached to drivers side head at the back and it was wires coming from the harness. My 2014 had a metal grounding strap that wyed off to BOTH heads. Is this normal?

Yes

 

[CunningStunt]

I also got to putting things back on and there are 2 MAP sensor connectors, one coming out of the front passenger coil/injector harness area and the second one near the throttle body sensor. What am I missing? lol