9-3 FWD (9440) L4-2.0L Turbo (B207R) (2009)
/l4-2.0l_turbo_(b207r)/Page-263002.png)
The fuel pump relay is controlled from pin 51(A), which supplies B+ when the relay triggers. When the ignition is switched "ON", the fuel pump relay
triggers for 1 second. This builds up pressure before pre-injection, which takes place when the crankshaft begins to rotate.
When the crankshaft then rotates, relay 7 is pulled until the ignition leaves the ON position or the crankshaft stops rotating.
