Possible causes

– Faulty Front Heated Oxygen Sensor Bank 1
– Front Heated Oxygen Sensor Bank 1 harness is open or shorted
– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors
– Intake air leaks may be faulty
– Vacuums leaks

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Excessive Fuel Consumption

P2195 Description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

P2195 Information for specific makes

P2195 ACURA
P2195 DODGE
P2195 HONDA
P2195 HYUNDAI
P2195 TOYOTA
P2195 LEXUS
P2195 SCION
P2195 BMW
P2195 FORD
P2195 KIA
P2195 MAZDA
P2195 MITSUBISHI
P2195 SUZUKI
P2195 VOLKSWAGEN
P2195 CHRYSLER
P2195 2006 TOYOTA COROLLA
P2195 2008 TOYOTA CAMRY SEDAN
P2195 2005 TOYOTA COROLLA
P2195 2007 TOYOTA CAMRY SEDAN