had 1 week off work now because my car is not starting! put new fuel pump in and swaped the black box on the so i did not have to decode it but the 2nd hand pump is still not work so just going to have the put the old not so good fuel pump what should i do?

Edited 22 June, 201412 yr by yezmike

Start with the basics, relay fuse ignition switch etc.

just posted on your other thread mate, take it you have the key chip that matches the pump you are trying to fit