1997 Audi A4 Quattro 2.8 no start
 

Hi everyone!

I bought a 1997 Audi A4 Quattro with a 2.8 v6. The motor was junk so I replaced it with a used one. I've installed a new starter also. However I'm not getting spark and the full pump is not operating. However if I pull the relay cover off and manually operate the fuel pump goes on. I have a parts car so I've swapped ignition switch, ecm, coil packs, engine harness, relays, ignition module. I'm currently stuck. The car cranks but Doesn't start. Any help?? Thanks everyone!!!!

VCDS codes?

Just checked and I have no codes

Still got no start. I have no power at the relay. If I supply power to the small stud at the bottom of the relay panel the pump turns on and I have spark but injectors don't fire. I switched the fuel pump relay with a known good one and still nothing. All grounds are good. I however do no have the front end on or. Would this cause a no start or am I possibly looking at a immobilizer issue?