Thread: Toyota announced big Landcruiser spec change & price drops in USA

Originally Posted by Gkp

I wonder if there is a way of waterproofing the ecu?

They are actually meant to be sealed, as if you are going to get water in from a little bit flowing past they aren't going to live through pressure washing or a good splashing even. But, get a ABS sensor connector wet or a DPF or oxygen sensor, or something in the fuel handling or oxygen sensors and the like and the engine could stop working on you anyway.