I have a 95 eg coupe and whenever it rains there is a decent amount of water on the carpet on the passenger side. I'm worried it might someday get to the ECU and want to put a stop to it now. I can't figure out where it might be coming from. My only guess it has something to do with the heating vent. Any body know or have the same problem?

 

tear everything away from your ecu(probably have to pull pass. seat, pull up carpet), get inside and shut the door, have someone on the outside sprayin water over the roof, windshield piller, door seals..etc. and watch for the water comin in. usually you'll be able to spot it.