My 1996 F150 with OBD2 is failing Arizona emissions due to disabled EVAP system. I did not disable it and don't know how it would have been disabled. There is an EVAP canister present though.
The technician said they have new equipment this year or last year that detects this issue, and he checked my last 6 years of emissions and said the issue has been there for years. Since they didn't have equipment to flag the issue, it always passed.
I bought a scanner and everything is green except EVAP (evaporative system) and HCAT (heated catalyst) are grey which means not enabled.
They don't seem to care about HCAT as this truck does not have them.
How can I enable EVAP? Is this an ECM issue?
The attached pic shows the monitors ready state. They are orange when "not ready" and green when "ready." Grey is "disabled."