supersteve7

insufficient switching 02sensor... whats this exactly mean?

jimmyblue

iTrader: (11)

Most often means, too cold to work right at idle after
you put headers.

supersteve7

so what do I do to fix it?

2K2WS6TA

iTrader: (2)

Replace with bosch 13111

oange ss

iTrader: (50)

could be runnin too rich or too lean

ringram

Or tune open loop and toss the o2's for ever.

GuitsBoy

iTrader: (4)

After a dozen and a half oxygen sensors lost to this error, I finally went openloop. I do however run a wideband to keep an eye on things.

ZL1Killa

iTrader: (17)

i switched to the exact corvette rear oxygen sensors, still got the problem. happens about 40minutes after running around.

I have stainless steel headers, so holding heat is problem. I'm about to throw the stock ones back on and see about them

ZL1Killa

iTrader: (17)

are these better than the stock o2's also? I even had the problem with the stock 02's....not often but it did happen.

Billiumss

iTrader: (11)

Corvette O2's in a F-Body are known to cause switching problems, seen it myself.

jimmyblue

iTrader: (11)

All the 'vette sensors have going for them is a somewhat
higher heater wattage. Other than that, it's the same.
So if a few more watts isn't enough to get you lit up,
too bad, get code. Kill code. I got this on mine with the
Denso 'vette rears but it hasn't affected anything about
idle or other fuel trimming so far. It's just the first warning
that stuff is marginal as far as closed loop feedback.

ZL1Killa

iTrader: (17)

so either trash the o2's or try to header wrap or somehow hold heat in the exhaust more(a lot more, lol)

SideStep

ZL1Killa

iTrader: (17)

any info on this?

My car had the headers on it and the stock o2's for at least 5k miles, no problems.

now the car with the stock o2's only did the insufficient switching very seldom

the corvette rear o2s seem to do it VERY OFTEN, so why would they have better heaters in them?