Scan to the sensors...
 

I started having troubles with my car randomly not starting and diesel'ing during shut off around the same time that I replaced my air filter and sprayed the inside with carb/choke cleaner. Is it possible that something could have happened with this?
I checked all of the hoses and plugs and everything is hooked up. What do you think?

Should I check my sensors as well? Can I simply unscrew the sensors and screw it back in tightly?

Thanks everyone!