i just replaced my cluster have a new jet pcm on there and a new jegs 400lph fuel pump.. 0 obd2 codes and these two codes here the u1900 and u2011 are there abs codes?? does this mean i have to replace my abs brake module.. there was no codes about any speed sensors.. the whole thing is just that my brand new fuel pump wont pump... no codes about that tho... i just installed it... electric is connected gas line connected.. im thinking maybe my battery power is too low would that be why my fuel pump makes absolutely no noise and my aem pressure gauge reads 0 the whole time... i have lights and all that krap like windshield wipers and interiors and pats light blinks ... i waited till batt was fully charged and my charger even has 50 amp emergency start option i tried that ... no fuel pump action at all... is it because of canbus system.. canbus explains pcm cluster and abs all must work together to have car start... i tried my weird like "ball ramp style magnetized" sensor down by my clutch foot and it was down... so it aint that... that prevented my tune from taking to itself before.... at one point i had a xs 4700 gel battery and it was strong but the car wouldnt make it across town until i had a new rural king battery in it and i have some problems with charging system turned out to be frayed loose wire... im thinking of checking to see if im getting electric at fuel pump.... i just replaced any and all broken fuses like man i been through that thing and ill check again... i replaced alllllllllll relays and im sure thats good there they were all brand new this time.... are you serious that this could be just weak battery power?? the fuel pump no singa what gives.... im gonna save up to a super nice optima or xs again but i wont buy till she making some kinda reaction have some time to work on the car this week any suggestions????