Converter Warm-Up Test Passed

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1997 GMC Savana Special, 1997 GMC Savana Camper Special, 1997 GMC Savana, 1997 Chevrolet RV Cutaway, and 1997 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

No VSS DTCs are set.
No TP sensor DTCs are set.
No HO2S DTCs are set.
No misfire DTCs are set.
No MAP sensor DTCs are set.
No fuel trim DTCs are set.
No IAT sensor DTCs are set.
No ECT sensor DTCs are set.
No MAF sensor DTCs are set.
Engine coolant temperature greater than 167°F (75°C).
Vehicle is in "closed loop" fuel control.
Listed conditions are met for a period of time to ensure a warm catalyst (at least 2 consecutive minutes).
Calculated engine load is steady.
Vehicle speed is steady between 20-70 MPH.
Intake air temperature is at least 14.5°F (-9.75°C).
MAF sensor is less than 50 gm/s.
Engine speed is not greater than 4900 RPM.
TP sensor is greater than 1.9 percent.
Pre-catalyst HO2S average is within 8 millivolts of catalyst monitored HO2S average voltage.