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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Does your Car Idle Roughly? Reduced Power?

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Other Comments

P0508 smart fortwo Pure
Engine light on when the car put in reverse, it make a loud noise as soon as you release the brakes pedal. Also in drive only when the car completely stop at the traffic light, as soon you release the brakes pedal again the car launched forward with a jerking motion, after initial move everything is smooth when the car already in motion.


P0350 ihave change all the plug in ignition coils and still nothing happens,, i also replace all spark plugs but still i have a rough idle

P0222 Hola mire mi comioneta es 2006 ford F150 v8 mi problema comenso cundo el Mecanico me digo q tenia q cambiar la ponpa de gasolina y luego recorri como dos dias y cundo prendo comcomiensa a temblar y no se acelera y luego cambio el cuerpo de aceleracion y camino un dia y hoy se prende tiembla mucho y no se acelera y me precenta estos códigos pp2104 p0122 p0222 p2110 y no se ya quemas hacer porq ya me a cobrado como alrededor de $1000 alguien me podria decir q puedo hacer

P0757 shift Solenoid B Stuck On

P0147 Chevrolet Astro
check engine light come on van vibrate& shake van do start




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