C5042081

iTrader: (5)

ok went to the track tonight, I notice shaking/stumble at low rpms and idling,
car is fine at WOT, on the way home the car used 3/4 of a tank of gas in 50mins. also noticed alot of poping when letting off the gas

Does this sound like the O2 sensors are bad??

ZONES89RS

iTrader: (25)

What it sounds like to me, seems as if it is in run rich mode to be safe, no SES light? Not yet i guess huh? Give the BD I enough time and i am sure it will, then you will know which one it is.

Ralls

iTrader: (32)

Yes, those are symptoms of bad o2s. The car goes in open loop at WOT, so that's why you don't feel it then. OBD1 won't tell you **** until something actually fails completely. You would have seen a code already if you have OBD2. It's a bitch sometimes...

Gun5

iTrader: (37)

ya if they are bosch or aftermarkets kissm goodbye i put like 800 miles on 2 new ones and had to warrenty both now i think i gotta do it again 900 later (few months)

James Montigny

iTrader: (13)

Yup, she'll run rich and generally feel like a slug.
Without the O2s, you're flying blind.

C5042081

iTrader: (5)

pretty sure there the orginal 02's heck Ill get it scanned, Ill replace them anyways