1sykcord

Hey guys, I just read my CEL code with a borrowed OBD2 reader. I got the code and this is what its giving me.

"O2 SENSOR CIRCUIT SLOW RESPONSE (BANK1 SENSOR1)"

Does anyone know what that means?? I will assume i need a new O2 sensor. Any insight into whats really happening would be great. Here's my set up. Let me know what u think. I need to pass emissions. Thanks.

D16Y8
Turbonetic Turbo
Turbosmart wastegate
Vortech Blow off
Precision Turbo & Engine Front Mount Intercooler
Crane Hi6 Ignition
AEM Fuel Pressure regulator
B&M fuel pressure Gauge
Magnaflow Cat-back exhaust

civtegra90

You have a turbod EK and its still OBD2? wow... Yeah, I would assume the sensor is just dead, if it does it again you could be runnin too hot or lean, etc...

1sykcord

The car seems to run too rich, Its running an FMU, To be changes soon.

crazyae

iTrader: (2)

What i think is happening here is the O2 has been contaminated and has gone "lazy" ... yes lazy. In the automotive world you can call an O2 sensor lazy. This means the sensor is still working, but not up to par. This happened to my moms 2005 camry and she was getting poor gas mileage until it was changed under warranty. The best idea..... if you could get a hold of one is back probe the O2 sensor and check it under a lab scope to see its pattern. You can then see the o2 sensors pattern and if its not transitioning a signal in a smooth pattern then replace the O2.