I have problems passing my 01 blazer for smog.

the catalytic converter, air injection, and evap are on incomplete even though i drove the car for 300+ miles. The mechanic says there are no codes either.

 

You have to follow the GM Drive Cycle to a 'T' to get all of the monitors to complete their testing. Just driving around doesn't cut it.

 

yeah..... im gonna have a problem with that.
Do you have to do all for it to complete? Or certain ones for the certain lights that I need?
Where I live there is no 50 degrees lol. Lowest I get is 65

 

Read step 1 carefully. Coolant must be below 122 degrees Farenheit.

Performing all of the steps will force all of the monitors to run and complete their tests. If only certain monitors are incomplete, you can pick & choose the steps that affect the monitors that you need to complete. At the end of each step, it explains what monitors are forced during the step. You don't need to perform each step, and you don't need to do the steps in order, but you do need to perform the step exactly as written, or the monitor will not run and complete its tests.