Blocked Jet detection on a 2C kit can it be done?

[trev]

On my car im running a 2C kit with the HSV triggered by the OMEX ECU, and im using two 0.3mm jets. Ive recently had a blocked jet and i was wondering if there is any off the peg solutions, or schematics available to detect if one or both of the jets is blocked. I did look at the DDS3 but could not see if it can detect a blocked jet, as you dont know if the jet is blocked or not until you try to inject by firing the HSV.
I did see in one post Richard said you can look at the pulse rate of the pressure feedback switch to the pump to see if its running, but you can only check against this for x microseconds after the HSV has fired and if it does not fire or runs at a lower pulse rate, light an led to show an issue.