LS1TAUTO

iTrader: (1)

duh.........im a idiot my guy who installed the headers for me told me that my driveside o2 isnt even pluged in i guess the o2 wire wasnt long enough so i orderd a o2 pigtail extension.......could that be the reason why it was runin like crap???????

chadaclysm

Uhhhh if you're talking about the front o2, yes that is definitely your problem lol. But if you're talking about the rear o2, you better keep searching for another reason.

Jon@Texas-Speed

iTrader: (18)

Yeah without front O2 sensors, the car will run terrible. The car will put a lot of fuel in to ensure it doesn't go lean. I would get some extensions in asap!

Jon

Scira

iTrader: (4)

Especially if there's nothing plugged in, that means there is fresh air being sucked into the exhaust before the cat.....no bueno