Do the red icons mean something is wrong? I don't have any current codes Help me understand....

 

I/M or inspection maintenance monitors are system tests the module master runs to determine if a system fault that effects emissions has occurred.
these monitors will have 3 possible status. pass, fail or not completed
when you clear dtc in the pcm all these monitors reset and will show a not completed status. As you drive and the conditions are met for the monitor to run, they will pass or fail. if they fail you get a dtc. I assume with your scan tool the green means those monitors have r un and passed. the red have not completed testing.

 

So I need to drive it. I did just reset after replacing the vacuum thingy under the hood. Then after trying to learn about the scanner I saw these.
Thank you!

 

Yes drive it, you will find that stop and go traffic or city driving will get the monitors set more quickly then just one long highway drive.

 

Easiest way to get all the monitors to turn green is to drive around with a half a tank of gas and be sure and start with a cold engine. One or more of the tests needs to be able to pull a slight vacuum in the gas tank and maintain it for a short period of time. Quickest way to make sure that test is run and completed is by driving around with a half a tank of gas or less.

It took me several months of driving around and going to the emissions testing station and getting come back in 14 - 30 day waivers before I discovered that it was my keeping the gas tank full that was the root cause. As soon as I stopped filling up whenever the gas gauge was between 1/4 - 1/2 down, it passed.

 

I did drive it and all but one of the red dots turned green. Now I just need to chase down what EV means.

 

It's evap. Simple things first, check gas cap, could be egr (exhaust gas recirculation) valve.

 

No EGR this model. Could be gas cap. It doesn't seem to screw on right. I will start there
Thank you!

 

My gas cap (Lumina, and 03 suburban) has an O ring seal, check on yours, I replaced one because the O ring had several cracks

 

there is no fault yet as the test have not run. the conditions for the test to complete has not occurred yet. depending on your model...the evaporative emissions monitor may not run in cold temps. So you may not get a pass or fail until spring. This is why emission test facilities give evap a conditional pass.