VT LS1 O2 sensors

[AndyVKSSA]

hey guys, put a new pair of O2 sensors in my VT SS LS1 seen the old ones were stuffd, car seems to idle smoother ect but fuel economy is still fairly sh*t.. have done almost 800ks since puttn new ones in.. do i have to get the car re-tuned or what?

[db_notso]

i have noticed that the cheaper no genuine 02 sensors read at the incorrect ranges... if they are genuine sensors with standard computer and std tune you may have an issue...

[AndyVKSSA]

there bosch ones with edited computor

[Not_An_Abba_Fan]

No, you shouldn't have to get the car retuned, but if it has a tune, do the O2 sensors still actually work? Some tuners turn them off, especially if you have a mafless tune.

[AndyVKSSA]

nah its not a mafless tune, im not 100% on how all the LS1 editing n shit works, iv been told mines edited but not tuned? still runnin standard air box with MAF sensor hookd up. fuel economy sudenly turnd to sh*t at about 130,000ks and guys down at dyno put some sensor in the exhaust n said it was runnin rich n O2's were screwd..

[Not_An_Abba_Fan]

Unless they hooked up a scan tool to read your error codes, just taking an emission reading won't tell you the O2 sensors are stuffed, just that it is running rich.

I would say either the coolant temp sensor or air temp sensor is stuffed.

[AndyVKSSA]

where abouts r they on the car?