I put in a full dod delete on my 2014 5.3l silverado I changed the oil pump also, now I'm getting zero oil pressure. I pulled out oil pressure sensor crank engine and get no oil? Bad pump? Or could it be a different issue?
thanks

 

check the oil pressure control solenoid connector and ensure there are no bent pins or corrosion. if it's ok. check resistance. pin 1 Violet/Dark Blue to pin 2 Dark Blue. should have 10-30 ohms on the male side.

keep me posted hope this helps

 

Thanks, I've fixed the issue. As the pump is not bolted to oil pickup tube,only pressure from pump to pan I had a bad seal so it was pulling air not oil. Not the best design by GM! Had pull the motor and reseal.