Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Hyundai >> 2021 >> Ioniq Plug-In Hybrid Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (PHEV) (3 Of 3) >> DTC P2626: O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1) >> Component Inspection >> Check HO2S (S1) performance

Check HO2S (S1) performance

  1. Substitute with a known - good HO2S (S1) and check for proper operation.
  2. Is the signal normal?

    YES 

    • Substitute with a known - good HO2S (S1) and check for proper operation. If the problem is corrected, replace HO2S (S1) and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. So, check poor connections and the related circuit between ECM and component thoroughly. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
scientia non olet · About Mike's Workshop Manuals