My EVTM Manual for 93-94 Ford trucks says almost exactly the same thing as Ryan's site for DTC 332:

Continuous Memory DTC 33/332 indicates that the EGR valve did not open with the engine stabilized and with EVR solenoid duty cycle present sometime during vehicle operation.

Possible cause:

-- Obstructed or cracked hose to EGR valve.

-- Damaged EGR valve.

-- Damaged EVR solenoid harness.

I am not trying to argue, but I do know vehicles equipped with DPFE use the same code when said sensor, that does measure flow, triggers a flow error. A vehicle with an EVP has no direct way to measure EGR flow.