2008 CX-9 po203 and po0097 codes

Having some issues with my CX-9...My wife had the check engine light come on and flash. I scanned for codes and got po203 which is injector open circuit on cylinder # 3. I cleared code and it hasn’t come back. Now when u drive at 4th to 5th gear I get a slight vibration. It almost feels Ike a shutter but I’m wondering if that injector code is related, possible misfire. I also notice the po0097 code which may be unrelated. It’s for an air intake solenoid. Any advice?
 
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2010 CX-9 GT
I'd recommend pulling that injector and checking the resistance. There are several threads on here about injectors.

Here's an example:
 
I'd recommend pulling that injector and checking the resistance. There are several threads on here about injectors.

Here's an example:
Great, thank you. I just thought it was odd to feel a shutter between 4th and 5th gear. I guess it’s possible if an injector is misfiring.