just right in front of TQ



and as far I know is:

Idle Enrichment (IE) system:
75-81. This is a driveability enhancement. It supplements the choke function by allowing an even richer mixture during the warm up period to improve driveability. This will appear as a small attachment on the front bowl cover that has a vacuum port that connects to a coolant temperature sensor (CCIE), then to manifold vacuum with bleed. It will also be plumbed into the EGR delay timing system.