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I assume you mean you're monitoring your Injector Control Pressure?
What are you monitoring it with? If it's with a Scan tool that reads active PID's, monitor the ICP compared the the Commanded ICP. They should be the same.
I'm not exactly sure of the names of these PID's, but you should be able to figure them out. There should be one for the actual Injector Control Pressure, and one for what the PCM is expecting.