1997 auto se
recently i threw a new 25 dollar cone filter on my max, stuck the air temp sensor between where it screwed together and after a few starts my CEL came on, i did the cel testing and found the four codes that my car was running. They were
1. intake air temp sensor (04 01)
2. MAP/BARO SW Solenoid/Valve (13 02)
3. Absolute Pressure Sensor (08 03)
4. Revolution Sensor (11 02)

Now what im wondering is what i can do to fix these...if anyone knows off the top of their head or even what these codes mean, and my biggest question would be, are any of these really urgent to get to (as in doing harm). no one really seems to respond to my posts but i would really appreciate the help...considering im very new to this but expect to have a huge hobby with cars in the future, thx.