Your car uses an L Jet Bosch system.
Here is a link to an e12 L Jet information site.
http://www.firstfives.org/faq/ljet/jetronic.pdf
The ignition controls the main relay, which controls the fuel pump relay.
To bypass the fuel pump relay you can short pin 30 to 87 bypasses the relay.
To bypass the main relay you can short pin 30 to 87 bypasses the relay.
Later,