[MAD_83supra]

I cleaned the dirt and oil off my engine yesterday. I use a garden sprayer and mineral spirits and spray the engine bay and underneath the car and use the garden hose to wash it all off.

I have a AutoMeter guage and a Digital volt meter all tied to the O2 sensor. As soon as I started the car, I knew the sensor stopped working. I checked and cleaned the connector, it was dry and seems fine.

I just hope I didnt hurt the ECU.

 

[trdmkii]

you couldn't hurt the ecu. The sensor itself generates its own voltage and it is grounded through the exhaust. So really there won't be too much amperage going to the ecu if there happened to be a short