smog help.

The P0410 is a air injection code problem with that is you have the newer linear combo valve that is computer activated to allow the air from the air injection pump to flow.Instead of the vacuum combo valve you can test with hand vacuum pump.Tohe newer linear combo valves needs a tech2 to test the combo valve and the computer wires etc.You could see if the ports are clogged to the air injection.The computer looks for the front o2 sensor in the exhaust manifold o2 readings to be below 200 mv while the air injection pump is running if it doesnt then it sets that code.Your code P0442 evap small leak is a leak somewhere in the evap system gas cap gas tank etc.The first thing i would check is your fuel cap make sure its tight and also make sure the fuel cap seal isnt cracking if it is replace the cap.The code P0128 is thermostat below regulating temp that is usually a bad thermostat or bad coolant temp sensor and or connector if its corroded.