I'm doing some testing on my sis's '93 G20. The car has a motor out of a '92 SE-R. The problem is that she allowed some stranger dumdum help jump start her car. The dummy hooked up the cables in reverse and got a big spark! Now her car is not charging and the dash lights/wiper/turn signal does not work either, with a new battery even. The car also does not want to idle very well, you have to stay on the gas or else it dies. I have checked all of the underhood and underdash fuses, all fine now. I suspect the stock ECU is dead. Maybe I should look at the ECU lights for any sign of life?