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Identifying faulty injector - using this FordScan data

Fordster1
Fordster1
in Ford Focus Club

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Regarding a mk2 Focus, 1.8L 

Intermittent jerkiness when driving, happens every so often, getting more frequent, little judder. I got the below data from Fordscan. No EML on and no fault codes or pending codes relating to injectors.

The 2000rpm readings below were with the car just idling I revved it to 2000rpm, not actually "driving" at 2000rpm. Is it better to check this driving at 2000rpm?

At Idle:
CLY1 ~ 0.79
CLY2 ~ 1.20
CLY3 ~ 1.29
CLY3 ~ 0.60

 Revving at 2k RPM. now I seem to get a default reading across all 4
CLY1 ~ 1.00007936
CLY2 ~ 1.00007936
CLY3 ~ 1.00007936
CLY3 ~ 1.00007936

This doesn't look right as I would expect some discrepancy between them, any ideas if the 2K RPM reading is faulty?

Thanks for any help you can give.

**No relevant codes appearing

 

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