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DTC P1144, P1164 HO2S1 EC-469 C D E F G H I J K L M A EC DTC P1144, P1164 HO2S1 PFP:22690 Component Description EBS00MIO The heated oxygen sensor 1 is placed into the exhaust manifold. It CONSULT-II Reference Value in Data Monitor Mode EBS00MIP Specification data are reference values. On Board Diagnosis Logic EBS00MIQ To judge the malfunction, the output from the heated oxygen sensor SEF463R SEF288D MONITOR ITEM CONDITION SPECIFICATION HO2S1 (B1) ● Engine: After warming up Maintaining engine speed at 2,000 rpm 0 - 0.3V ←→ Approx. 0.6 - 1.0V HO2S1 MNTR (B1) ● Engine: After warming up Maintaining engine speed at 2,000 rpm LEAN ←→ RICH Changes more than 5 times during SEF299U DTC No. Trouble diagnosis name DTC detecting condition Possible cause P1144 Heated oxygen sensor 1 The maximum and minimum voltages from the ● Heated oxygen sensor 1 ● Heated oxygen sensor 1 heater ● Fuel pressure ● Injectors P1164 |