grnmonster

iTrader: (1)

Have a misfire i think its the o2's (seeing as i have replaced everything else) so i unplugged them and it does not seem to be running any better...does that means it cant be the 02s? the misfire comes in and out one moment it will be perfect next minute it will miss..and its not throwing any codes.

lt1 beast

iTrader: (3)

try pulling the o2 see if they are clogged if not clean them with brake parts cleaner and reinstall that way you know your 02 sensors are ok

grnmonster

iTrader: (1)

Forgot they are brand ne bosch o2's

vanilla89

iTrader: (8)

from what I hear bosh suck.. Get some ac delco..

And you don't want to clean them with brake cleaner eather, if they are that bad,BUY NEW ONE'S

grnmonster

iTrader: (1)

Ya that seems to be the general consensus ...bosch sucks...guess ill have to track down some delcos

shbox

Unplugging stuff is never a good way to test on a computer controlled car. There are too many inputs and variables that affect things. The Bosch O2s don't have such a good track record on LT1s, but some people get by with them.

LT1PwrdZ

iTrader: (1)

Bosch is fine. We sell plenty. I have had them on my car with never any problems. Just my opinion as a parts guy.

LS1 SPEED

iTrader: (22)

We have never had luck with 02 sensors other then GM.

have you looked a the plug wires?

how old is the Opti?

have you check to make sure the fuse is not blown? I believe it is for both the MAF and 02's, but could be wrong.

grnmonster

iTrader: (1)

New plugs and wires, OPTI is less than 6 months old, i have not checked the fuse ill do that, i just think its the 02s becuase i had this same probblem about 2 weeks ago and replaced the 02s and it fixed the problem temporalily...now im on my second set of boschs (under warranty)

grnmonster

iTrader: (1)

Bump....