Response Test Enable
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.
- Closed-loop low MAP not active.
- Closed-loop Mode 0 not active.
- DTCs P0131, P0132, P0134 and P0135 not active.
- System in "closed-loop".
- ECT greater than 135°F (57°C).
- Engine run time greater than 75 seconds.
- MAF greater than 15 gm/s with engine speed at less than 3000 RPM.
- Average response time calculations completed for this ignition cycle.
- Ratio of left HO2S left right/right left times greater than 64 counts.
- Ratio of left HO2S left right/right left times greater than 48 counts.
- Canister purge duty cycle is greater than zero percent.
- Conditions present for greater than 2 seconds.