2002 GMC Savana monitors not ready CA smog test

I'm not quite sure what your problem is. Do you not get a check engine light, or you have the CEL on, but get no codes? I need a little more info so I can help you. Please advise.

Passes ASM Emissions test: 25mph@1476 rpm; 13.8%-CO2, 0.5%-O2, HC-1 ppm, CO-0.00%, NO-0 ppm.
Fails Functional check (Malfunction Indicator Light-Fail)
Is there a procedure to reset the MONITORS?
I was told to drive 80 freeway miles then retest.
NO "Servce engine soon light"

When you turn the key to "on", not start, does the service engine light come on? Usually the monitors will reset themselves after 50 miles or 5 key on/key off cycles.

Key "on" only = NO "service engine soon light"
I don't have a OBD II monitor to check

Check the bulb in the dash for the CE light. If the bulb is good, I would say that circuit of your ECM is bad.

SES light - tests OK when key is initially turned on like other dash indicators. Drove some the other day, SES light is out but without a code checker I'm not able to know if everything is OK sensor-wise. Going back to Smog Check to find out Mon.

Let us know what you find.

ended at dealership to replace fuel tank evap. vent on tank. All "monitors" cleared, aced smog retest.

Glad to hear it. Anything else, you know where to find us.