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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P0481 Cooling fan not working and ac condensor is very hot



Other Check Engine Light Codes

P0145   O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0156   O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0197   Engine Oil Temperature Sensor Low
P0248   Turbo/Super Charger Wastegate Solenoid 'B' Range/Performance
P0272   Cylinder 4 Contribution/Balance
P0333   Knock Sensor 2 Circuit High Input (Bank 2)
P0442   Evaporative Emission Control System Leak Detected (small leak)
P0721   Output Speed Sensor Circuit Range/Performance
P0952   Auto Shift Manual Control Circuit Low
P0960   Pressure Control Solenoid "A" Control Circuit/Open




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