cel light?

i just got my pocketlogger today i have a cell light on, it told me 02 sensor heater circuit(bank 1 sensor1). is this the front or rear? because i just replaced the front one, and i dont have a cat anymore, would it be the rear?
thanks

it could be get under the car and check the wire make sure its not cut or something.

ok. i just found out that it is the front o2, but it is brand new.. would this make the car idle like crap. maybe it only does it till it warmed up i will check tonight.

That DTC is letting you know that the catalyst heater on the O2 sensor is not functioning. The heater is used to bring the O2 sensor up to normal operating temperature. Look at your logger and see what the O2 sensor voltage is doing. On a pocketlogger it will be O2 sensor bank 1. Take a look at the voltage at idle and at WOT (don't wreck :lol: ). It should be cycling at idle and should peg around 0.90 - 0.98V at WOT. Under deceleration it should drop to 0.00V.

Did you buy an OEM O2 sensor or was it aftermarket. If it was aftermarket you may have gotten a sensor without a heater. The heated sensors have 4 wires.

yea it has 4 wires, the second o2 i covered in foil, something i read on the vfaq. i have a a/f gauge it reads .96-.98 at wot.