IG "OFF" and disconnect HO2S(S2) connector.
Check that HO2S(S2) is contaminated or damaged by foreign materials.
Does the HO2S(S2) work properly? (Check variation)
![]() | ▶ Go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Carefully re-do this troubleshooting guide steps. ▶ If problem still occurs, replace HO2S(S2) and then go to "System Inspection" procedure. |