Conditions For Running

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Barometric (BARO) pressure is more than 22 in. Hg (74 kPa).
Engine coolant is at operating temperature, 160-248°F (71-120°C).
Intake Air Temperature (IAT) is 5-167°F (-15 to 75°C).
Engine is in Closed Loop fuel control.
Engine has run for 6-8 minutes off idle in order to initiate test.
Battery voltage is 11-18 volts.