Do you mind posting the results, The only components downstream of the CP3 are injectors, there's never been any ill effects to Injectors ( properly within spec's) by maxing the pressure, the max pressure the CP3 produces at max idle is 29,XXX Remember this MAX PSI is running NOT a spike, Now if you turned the truck off preforming this test without a NON-LV system it can spike to 50-60+K PSI.