Does anyone know if Petrol and diesel dash board harness are the same?

I know zafira's are the same as they disconnect from engine harness at the bulk head, but vectra b's are different as they go into the engine bay and house the fuel pump relays.

Just someone has got happy with snips in the past so I'd prefer to change it altogether but scrappy only has petrols in, mine is a 2.2 dti