4agze help?

[tHE _mEXICAN]

I got a ae101 corolla fitted with a 4agze out of a ae101 levin. However i did not do the conversion so am not to sure whats what etc. The guy told me that he used the fuse box is from the levin it came out of and theres a fuse which keeps blowing. Its says efi HTR on it and is meant to be 15Amps, however was fitted with 20Amps at the time.
What does this fuse mean?, i know i have no fuel pumping through which makes me think its the fuel pump shat itself coz it was the standard 4afe one but i'm not entirely sure.
it happened after i fitted it with a new supercharger pulley belt and filled the charger up with oil. Pretty sure the chargers had it as theres significant play in the pulley and is noisey. Anyways i drove down the street and came on boost then the car died. the fuel pressure reg tells me i got no fuel, i think i could have burnt it out as i accidently left the ign. on while doin the belt which took a couple of hrs as i got given the wrong belt.

Do you think its just the pump or could it be something else?
Since i think its the pump what pump upgrade would you suggest if i want to go turbo shortly?
Should i just get a standard 4agze one of should i opt for something i better like a mazda rx7 one or evo? Whats the easiest one to install without any or minor mods?
I plan to run blue top cams and rb20det turbo with bout 10 - 15 psimax of boost not to interested in huge power figures either just want a little mare kick.
Any help will be appreciated.

[Crucible]

Just check power at the pump then you know where to go.

with that boost just run a gze pump it should be fine.

if your concerned about the charger they go for 2-3 hundy on trademe and are always popping up