I had an antifreeze leak pop up last week. After fixing it my car has ran like crap and my A/F gauge has went dead although it is still hooked up correctly, although it does flash a red light (lean) every now and then. When I put in my 02 sensor i used a solderless connection like an idiot and i believe when that antifreeze was leaking it hit the wire. All my fuses are still good, did i cook the 02 sensor? Is the ECU still ok? how can i check these two things

 

I can come up with no logical explanation as to how coolant on your 02 wire would cause your ECU to fry.

 

i'm not saying it did, i was just asking if it could. i have no idea of the effects of liquid hitting a bare 02 wire, although i'm sure they are not good.

 

your O2 is robably just fouled or died, replace it if you are sure it is wired right. coolant on the wire, i can't see how it can adversely affect it's operation if you cleaned the wire.

 

The voltage and amperage on that wire is pathetically low.

 

this is kind of what i'm thinking j-rat, what will i need to do in that case?

 

well, there definately an issue with the O2. If anything, the water could be causing the 02 signal to be grounded to the shielding. Just check/replace your connecton.