Flamed350

iTrader: (3)

i'm getting a bank 1 sensor 1 and bank 2 sensor 1 heated oxygen sensor insuffient switching code. i did h/c header install a couple months ago and everything was fine and no codes until yesterday. one sensor was brand new at time of header install. and was fine till yesterday. i bought a new sensor yesterday and put it on. still got the code so then i switched sides and still getting code. so in short one sensor is brand new and one sensor is two months old. any suggestions?

jimmyblue

iTrader: (11)

If it's bugger cold in "Horsepower Central" then the O2
sensors just will have a even harder time of making
operating temp, let alone quick enough to satisfy the
PCM test.

Insufficient switching is one of those "heat" type codes
that we just have to kill, to run headers without it
bitching. But recognize that this also indicates low-end
closed loop mixture quality problems headed your way.

sjsingle1

iTrader: (1)

i switched to denso O2s......did not solve the problem but it sure helped

EricYJ-TA

iTrader: (10)

Some people have tried the corvette style o2's and had some success part # 13111

z-maro

iTrader: (18)

I went with the Denso Vette sensors and still had the same problem. My tuner decided to just tune out the codes.

senicalj4579

iTrader: (41)

Dont waste your time or money buying new ones like I did. Just get a tune and you should be good.
I tried stock sensors using extensions. I tried the vette sensors (which I run now) and it didnt fix it. Only fix was a tune from someone who knows what they are doing.

Flamed350

iTrader: (3)

thanks for the replies guys...i do have a denso and a bosch. car is tuned but i will take it back to the tuner and get this code deleted. thanks again, b/c i didnt know if it was hurting performance or what.

flattusmaximus78

iTrader: (1)

Some people swear it changes trims and the afr's. Neither of which changed on my car when I replaced the 02 sensors after getting the same codes.