Cm2250 injector test fail...

[jimeneztrans84]

I did the injector test on insite and fuel pressure dropped about 9,300 psi in 60 secs. I did it a couple times and same results. My fuel rail pressure is also jumping up and down all over the place. It also takes a bit to climb up to 28-30 psi and stay there. It will climb up to 28 and drop rapidly without even turning key off and starting test. What's my next step? I'm thinking that's y I'm getting that up and down idle at start up... fuel mileage is 7.3 to 7.5. Thanks guys in advance.