FixVault
Home
›
Pontiac
›
2003
›
Aztek FWD
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls Self-Diagnostics
›
Drive Cycles
›
Inspection/Maintenance Heated Oxygen Sensor Heater System Set Procedure
›
Conditions for Running
Conditions for Running
Start-up Engine Coolant Temperature (ECT) is less than 90°F (32°C).
Start-up Intake Air Temperature (IAT) is less than 90°F (32°C).
Difference between the IAT and the ECT is less than 7°F.
Battery voltage is 10-18 volts.