I'm using the lc1 as a narrow and wideband sensor.
I have everything hooked up right and the w/b works great all the time.

But sometimes when I'm driving the car starts running like ****. It won't go above 2000 rpm's and it cuts out bad. It's like a bad o2 sensor.

When I slow down the car surges and seems to run like normal. Then a second later it runs like **** again.

I know it's the narrowband acting up. I already tried a new ground. The 12 volt supply I'm hooked into is from the tcs harness(I think) beside the cigarette lighter. And the ground is a tranny bolt.

Anyone have this problem? What did you do to fix? Thanks