Hi all I just bought my rover about 3 weeks ago and changed out the two front o2 sensors a couple days after. Well this last Saturday I went off-roading and my ses light came on, I pulled the codes and got po130 and po150. After checking codes I pulled the connectors and both had water and come corrosion, I know the connections were tight and luckly the parts store is warrantying the sensors. So my question is there a way to waterproof the connections without compromising the signal from the sensor? I know they have the rubber in the connectors that should keep them water tight but maybe I just got a bad set?

Any insight is greatly appreciated,

Thanks Weston.

 

Most anything you'd use for waterproofing would melt at XXX ferenheit that they get up to.

 

Use dielectric grease in the connectors, done.

 

Thanks for the replies! Spike should I try to avoid getting the grease on the pins themselves or should I be fine putting it everywhere? I just don't want to ruin the sensors with them being so sensitive.

 

The sensor itself is inside the Y pipe, it won't get wet. Dielectric grease is highly conductive and can be applied directly to the pins.

 

Sorry I meant the connectors, but I thought dielectric grease was non conductive. I was just hesitant from searching on the internet and reading that dielectric grease could cause enough resistance to throw the signal off.

 

What he said.

Just make sure everything is dry before you put the grease in otherwise it will hold in the water and the pins will rot.

 

I tried to Pm you but your inbox is le fûl.

 

Ok sounds good dielectric grease it is! Thank you both for you help I appreciate it!

 

Yeah sorry I meant it works well as an electrical sealant. On low-power connections it's not great on the connections but no worries on the 02s.