Engine system service required comes and goes by itself. Got code checked at Autozone as P0101. Cleaned the mass air flow sensor the light went away and then came back. Another observation - when the temperature rises, the light goes away and temperature dips the light comes back. Thinking to change mass air flow sensor.....ANY ADVICE PLEASE ASAP.

 

You may want to consider changing the engine coolant temp sensor and thermostat. Do you notice anything odd with the engine temperature guage?

 

Temperature gauge is same ( no change), pretty much at the middle. Also, gas smell in the exhaust, also slight gas smell inside today. In the initial post when I said temperature, I mean to say outside temperature ( weather).
Note : 1. Also replaced air filter.
2. Previously while changing spark plugs and covering naked wire got short lead to fuse burnout - Again re-wired and covered the naked wires and changed the fuse.

PLEASE ADVICE