Part 1

Record the manifold gauge pressures and outlet temperature then compare with NORMAL SYSTEM PERFORMANCE 72 km/h (45 MPH) Chart.
Normal System Performance - 72K/MH (45 MPH)
Use the preset vehicle conditions for PERFORMANCE TEST - STALL except for the following:
Normal System Performance - Service Stall
1. Recirc Off (outside air).
2. Vehicle running at 72 km/h (45 mph) with engine fully warmed up.