Well i cracked a cylinder wall which caused a ton of coolant to rush through my exhaust. I fixed the motor and the car started right up. When im accelerating the wideband goes to 16-17:1 would the coolant have ruined the sensor causing it to give a false reading?

 

replace the sensor and you will know your answer.

 

Thanks for the help man haha. Im going to do that right now

 

Sensor sounds damaged to me, engines generally won't even run near smooth at load at 17AFR if at all.

 

got any exhaust leaks?

 

Test the sensor before wasting 80 bucks its not hard. Take a rag, soak in carb cleaner, stick sensor in if it goes full rich and stays for a long time sensor is good, if it goes full rich and starts going lean after a short amount of time sensor is bad