I tried searching but I don't think I'm having the same symptoms as other people.

My idle A/F is mid 14's. Not bad.

But under light throttle into boost it stays around 15 14, it never enriches. This just started happening, before it was a steady roll down to 12.5, you think it's a bad sensor?

 

what wideband? sounds like a very good posibility. obviously find out for sure before you keep beating on it.

 

I haven't driven it since I saw that. It's a LC-1 wideband. I'm not sure when it started happening but the car hasn't changed in performance or reliability at all.

 

is that that innovative junk? i hate those things you have to replace the sensor damn near every time you start the car lol

 

Usually it will start giving an error. I can't remember anymore, but mine is bad, again also. They do not like race gas, course it tells ya that in the directions Your also suppose to keep them from major heat too. When i wasn't using race gas and had mine setup properly the sensors would last quite a while, for me anyways. You could also try to recalibrate it, but i'd vote on it being bad.

 

I just did a heater control and oxygen sensor calibration. I'll take the car out for a spin later. I just can't really explain why my AFR is so lean other than the sensor being out of calibration or it being bad. I haven't messed with my map in months other than changing the injector offset to get a better idle, but as far as I know it wouldn't make my car run lean. There's no detonation or lack of performance from the car.

 

Those sensors go all the time man. If you have another spare WB or a friends sensor, try to switch it up. Usually when they go bad (atleast in my experience) they start going lean, or just flux. way more than normal.

 

bump

&

I drove the car on a 100 mile round trip today and went through about 3/4 tank of gas.

It has to be unhealthily rich.

 

my wideband has **** the bed for a while now..