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Possible Cause NHEC0435 I Harness or connectors I Heated oxygen sensor 1 (front) I Heated oxygen sensor 1 heater (front) I Fuel pressure I Injectors I Intake air leaks I Exhaust gas leaks I PCV valve I Mass air flow sensor DTC Confirmation Procedure NHEC0112 CAUTION: Always drive vehicle at a safe speed. I Always perform at a temperature above −10°C (14°F). I Before performing the following procedure, confirm that GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P0133 (BANK 1), P0153 (BANK 2) HO2S1 (FRONT) (RESPONSE MONITORING) Possible Cause EC-219 |