Contour Enthusiasts Group Archives Forums General Troubleshooting CEL came on, P1131 came out of OBD II diagnostic??

Went to Autozone cause the Check Engine Light was on. Their computer said code P1131. The P1131 means: " P1131
P1137 Lack Of HO2S1 Switches, Lean (Bank 1, Sensor 1)
Lack Of HO2S1 Switches, Lean (Bank 1, Sensor 2)
These codes usually do not indicate a problem with the O2 sensor. Rather, the O2 sensor is correcting rich due to an overly lean air/fuel ratio. Check Base Engine Idle, EGR, Fuel System and Air Induction System. Bank 1 refers to the bank of cylinders containing Cylinder #1.
Sensor 1 refers to the O2 sensor closest to the exhaust manifold.
Sensor 2 refers the O2 sensor downstream of the catalytic converter."

So there's a rich reading on one of my O2 sensors. Can I still drive it? Should I be concerned, and how much to replace/fix the problem, anyone know?

Thanks in advance....

I would reset it and wait if it comes back,
even when they say it's not the o2 sensor, it is the most frecuently cause, if it is the sensor it's about $50-60 and it's easy to do it yourself (with some time for bank 1)

I had this same code (and other from the sensor) it was solved with a new one,

Hope it helps,

RMR

PS if it's just this code it's not harmful to drive

By resetting it, do you suggest I take the negative end off the battery and wait 30 seconds?

it is and option, but it is easier to remove the 3amp fuse from the box next to the battery for a minute or so,