2002 Grand Prix Gtp Sedan

[dpun]

Question my service light is on found out It's a 02 sensor in front of the converter. Can i bypass or do something different to fix it? Economical stand point lol is this part of a reason im not getting better mpg? Thanks...

[Fivefingerdeathpunch]

Replace sensor, the car needs it.

It's only a 35-40 dollar part and your time to replace it.

[dpun]

thanks for heads up. What is critical about it?
Thanks

[HighOctaneRacing]

MPGs and overall efficiency. Replace it. You won't regret it and get Denso

[Scottydoggs]

when bad depending on the code. it can dump gas aka run rich and kill your cat. aka clog it up.

if its a o2 heater code thats not so bad. but should be changed anyway.

[Slick2500]

When it dumps fuel, it can also seep past your rings and you will get gas in your oil and eventually it will be new bottom end time.