UB2SLO

iTrader: (13)

I have Lt's on the Z and I replaced the O2's on the front and have the 02 extensions on them.. the sensors have gone to ****... throwing codes, I've read somewhere that there is a 02 sensor with a long enough cable so I can do away with the extensions. Which one is this and are they anygood?

Thanks

jimmyblue

iTrader: (11)

The Denso 'vette rears were not adequate for me with
Jet-Hots (coated) to avoid heater codes. They seem to
be functioning and haven't messed the trims around.
But not a "no codes" fix. Some people seem to have
done better with the Bosch 13111 and some just have
no luck.

soundengineer

iTrader: (16)

it is extremely important that you get coated headers....
as most of the time the bosch 13111's are still hit and miss with uncoated heades....but I have not had a problem yet as long as teh headers are coated

UB2SLO

iTrader: (13)

I do have coated LT's...

Thanks for the info... So, the bosch 13111's have the long wires??

mr2guru

iTrader: (16)

Yes, very long.

GuitsBoy

iTrader: (4)

I sure have 16 oxygen sensors in 50K miles.

soundengineer

iTrader: (16)

you might have something else going on if you've been thru 16 sensors...possibly running way too rich and fouling the sensors??
though I would expect you to be fouling plugs too if that was the case...

I've had the same set of 13111's for over 30,000 miles...

GuitsBoy

iTrader: (4)

Ive tried many things. Adjusted my tune a million different ways. Plugs look great. No black smoke. Idles and drives well except for some minor bucking from the cam. Ive changed my exhaust and made sure I didnt silicon poisin them or anything.

Bosch 13111s last the longest for me, usually about 10K or more before they throw the insufficient switching code. Although ive received a few bosches that threw codes immediately but exchanged them under warranty.

soundengineer

iTrader: (16)

IF you have bucking usually your fueling is not correct..sometimes spark....
I have tuned T-rex cams with no bucking after fueling is correct...

GuitsBoy

iTrader: (4)

Yes, perhaps at those certain transitional rpms and maps. Ill take care of it when I replace my stolen HPtuners and get wideband.

Anyway, I blew through quite a few o2 sensors before I had the cam. Again, I had no black smoke or anything, and the plugs and o2 sensors visually looked fine.

Thanks for the info, but i dont want to jack this thread.

SmokingWS6

iTrader: (1)

Exactly. I believe o2 sensor life is greatly related to the tune. I've removed a few ls1 owners fouled o2's, in most cases the car was untuned.

I tuned my car since day one of my LT and o2 install. I have approx. 20k on my Bosch 13111's. No codes yet.

GuitsBoy

iTrader: (4)

As did I. I have never had LTFTs stray farther than +/- 4 when fully settled. I have never fouled a sensor. They come out a clean dark brown without any carbon buildup. I'm always open to suggestions though...

SmokingWS6

iTrader: (1)

That has to be frustrating beyond belief. What brand o2's have you gone through? Is it throwing codes or do the o2's appear to be visibly dying when viewed on a scanner? How about brand of gas used? Bring the car by if your ever in the midwest.

GuitsBoy

iTrader: (4)

It goes something like this

4 stock OEM sensors,
2 Bosch f-body sensors
6 Bosch 13111s (2 were dead right away)
2 Densos
2 Current Bosch 13111s

Theyve all have perfectly acceptable wave forms at cruise. They were all a little slow at idle, which is to be expected. The denso's were slowest of all. My codes are usually "insufficient switching" codes, although ive had a "slow response" or two and a heater failure.