P0140 OBD Engine Code Logo   Code #P0140 -
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

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Hyundai Sonata
Check engine light on intermittently. Returned code P0140, 02 Circuit, No Activity Detected Bank 1 Sensor 2. Car starts and runs fine


starts cold after a lil ride has trouble starting once u park and come back but starts with difficulty

P0140

running rough

Tried o2 sensor and I drive a Chevy lumina 96

had p0420 code, replaced cat,scan p0140 code now engine light off

GMC Safari
why do I have a 140 code showing after replacing cat.


Toyota Sequoia
0140


Scan indicates voltage on O2 sensor ranges between .2 and .8. So it appears that the O2 sensor is connected and operating. However I am getting the code.

doesn't seem to effect a infrequently used 1996 Buick LeSabre -haven't tried to fix it till now (inspection due!)

Buick LeSabre
no symptoms noticed


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p0454 code

p0140 check engine light stay on

Mercedes-Benz ML320
check engine light stay on


Had error message P0140, P0141, P0154 and P0155. Replaced both O2 sensors within two days error message returned.

p0140

hyundai getz 1.3 05 lammda p0140

replaced 02 sensor

Cooper
hfojs.


Asuna
skvowV wow, awesome article.Much thanks again. Want more.




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Other Comments

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Light came on right after I farted


P0404 Cadillac deVille
intermitently idle rpm very high & uncontrollable.


P0404 Intermitently idle rpm very high & uncontrollable.

P0768 Volkswagen Golf/Jetta
p0768




Other Check Engine Light Codes

P0031   HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P0044   HO2S Heater Control Circuit High (Bank 1 Sensor 3)
P0184   Fuel Temperature Sensor A Circuit Intermittent
P0229   Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent
P0408   Exhaust Gas Recirculation Sensor 'B' Circuit High
P0444   Evaporative Emission Control System Purge Control Valve Circuit Open
P0485   Cooling Fan Power/Ground Circuit
P0844   Transmission Fluid Pressure Sensor/Switch 'A' Circuit Intermittent
P0927   Gear Shift Reverse Actuator Circuit High
P0936   Hydraulic Pressure Sensor Circuit Intermittent




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