Conditions for Running

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The barometric pressure is more than 74 kPa.
Engine coolant is at operating temperature, 71-120°C (160-248°F).
The intake air temperature (IAT) is between -15 to +85°C (5-185°F).
The engine is in Closed Loop Fuel Control.
The engine has run for 6-8 minutes off idle in order to initiate test.
Battery voltage is between 11-18 volts.