02 sensors

**Justin23454** · 01-11-2008, 04:24 PM

If my rear 02 sensors are bad will that effect my acceleration or anything?

**firemedic0135** · 01-11-2008, 04:28 PM

yes the PCM will adjust the AFR to try and correct the problem it sees.

**Justin23454** · 01-11-2008, 04:32 PM

PCM what AFR who? Sorry im a nub, I dont know what those are?

**180ls1** · 01-11-2008, 04:44 PM

Originally Posted by Justin23454

PCM what AFR who? Sorry im a nub, I dont know what those are?

it is the front oney you should be worried about the rear ones monitor how the cats are doing for the most part

**firemedic0135** · 01-11-2008, 04:49 PM

Originally Posted by Justin23454

PCM what AFR who? Sorry im a nub, I dont know what those are?

PCM= computer
AFR=Air fuel ratio

no problem I still dont know alot of these abbr. I soend alot of time on google lol

Basiclly your PCM looks at the exhaust before and after the catalytic converter using the o2 sensors.It determines if you are lean,rich or in the middle and adjusts the AFR accordingly
If it see's something that is not right ,it adjusts your AFR to try and make the numbers right.It will continue to adjust these (on the affected side,Bank 1 driver side,bank 2 passenger side) until it cannot adjust them anymore or your maxed out.
there may be others that can explain it better and if I am wrong they can correct me or help you out further.

**firemedic0135** · 01-11-2008, 04:50 PM

Originally Posted by 180ls1

it is the front oney you should be worried about the rear ones monitor how the cats are doing for the most part

that is correct.
I no longer have rear o2 sensors.I had them deleted when I bought the car.
You can delete them with a custom computer tune or with a handheld programmer.