check engine light/1999 xj

Ok this is baffleing,the evaporator code went away after it was reset.New problem is O2 sensor again both sensors are new OEM type by bosch.Also say's i'm runing rich.Reset light stayed off for about 13 mi and came back on.Waiting for freind with scanner to see what it gives us. in the mean time whats up? this is like the 3rd time this light has come on.

ca_digger said:

Also say's i'm runing rich.

Click to expand...

Would be helpful to the troubleshooting process if you post the exact codes that were pulled, including the evaporator code. Devil is in the details here.....