Hi ht don't know if there a thread all ready out there on this but I got a wireworx basic engine harness plug it all up everything is wrking except fuel pump.is there any wire that I need to jump on ecu harness side..any help would be much appreciated.

 

what car, what engine, what ecu?

 

Eg itr and p28

 

everything should be plug and play with all that. either you have wiring damage somewhere, or grounds are bad, or possibly a bad harness. may need to contact wireworx about this