How can you tell if an ECU is fried aside from other things in the car?
I accidentaly grounded the positive battery terminal, doing god knows what to everything.
Now the car is backfiring terribly, and it stalls if i turn the headlights on. Is there something i can do to test if the ECU specifically is stuffed. The cars turns on and idles ok with the lights off seemingly, but it backfires really really badly if you drive it, but doesn't seem to backfire just idling it on the spot.

Thanks for any help, Dan.