o2 sensor question

[kickroqs]

so my car cranks over and will start after trying for 30 minutes to an hour. Replaced the fuel pump and both ignition coils and sparkplugs. i bought a scan tool and got a code P0141 (oxygen sensor heater circuit malfunction). so i'm wondering would the downstream sensor disable the fuel? that was the only code that showed up. whats the difficulty level on this replacement?

[PappaSmurf]

Oxygen sensors DO NOT have ANYTHING to do with your fuel pump. The oxygen sensor only tells you if you have too much oxygen in your exhaust or not enough. I havent seen that code before, but would wait till others chimed in on this before you DO anything and mess up the motor (or anything else).
-Smurf-

[clutch1]

O2 sensor won't make the car not start... doesn't even start reading until a minute or so after the engine actually starts (has to sufficiently heat up).
That being said, downstream (after cat, yes?) is even less of a player, simply monitoring if the cat is doing it's job.

You say it takes 30 mins to an hour to start? Explain.. you just crank it for a half hour, whaaat?

[kickroqs]

I try and start the car but cranks over. i turn the back to off and try and start,but nothing. i do this for like i said 30 min. to an hour and out of the blue it starts. once i turn the car off its back to the same procedure to start the car.

[lord2heart]

bad injectors maybe?

[Nate's Alero]

Security light flashing

[mbeals]

My thought too ^

When it does run, does it drive fine? Does it randomly die?