ok I see reference to buying some stuff to dip the ecm or spraying it with lacquer?

harness plugs seem straight forward just goop with dielectric grease and re plug in

would like to do this while engine is apart

 

non conformal spray coating, yes no?

 

and there is also this

 

I'm interested too...haven't found much beyond dielectric grease that didn't lead to other issues.

 

well I ordered the can in the second link? the acrylic lacquer spray mostly cause it dries faster, the silicone looked like 48 hours + to dry

says for high temp electronics, static protection, high moisture area protection , arcing etc. I am gonna assume it is what they spray on the copper wiring inside electric motors and alternators

 

my ecm is dated 4197, opened it up and it is already coated should I still spray another coat?

 

Keep us in the loop with your results

 

here is what the inside of the ECM looks like

 

outside the case looks like crap, inside the boards look like new probly cause they are coated, the drain in the case looks like a 1 way valve, but the case is not sealed in any way, think I may re-spray everything and spray the inside of the case

 

ok so the spray showed up, went on no problem it dries like a flat clear coat with a bluish hue, can says UV reactive for QC tried to take pics but I don't think they really show up, also sprayed the case and covers inside and out can also product is UL listed, unless I go to start the rover and the ECM shorts out I will probly start using this on all the ECU boards when I need to service them