Possible causes

– Faulty Front Heated Oxygen Sensor Bank 2
– Intake air leaks may be faulty
– Exhaust gas leaks
– Front Heated Oxygen Sensor Bank 2 harness is open or shorted
– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors

Tech notes

Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem

When is the code detected?

An excessively high voltage from the sensor is sent to Engine Control Module (ECM).

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– High Fuel Consumption
– Excessive Smoke from Exhaust

P0152 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.

P0152 Information for specific makes

P0152 JAGUAR
P0152 BMW
P0152 CHRYSLER
P0152 JEEP
P0152 DODGE
P0152 FORD
P0152 HYUNDAI
P0152 KIA
P0152 LEXUS
P0152 MAZDA
P0152 MITSUBISHI
P0152 SUBARU
P0152 SCION
P0152 TOYOTA
P0152 VOLKSWAGEN
P0152 MERCURY
P0152 AUDI
P0152 INFINITI-2
P0152 INFINITI
P0152 NISSAN-2
P0152 NISSAN
P0152 BUICK
P0152 CADILLAC
P0152 CHEVROLET
P0152 GMC
P0152 PONTIAC
P0152 SATURN