I'm driving a 1998 Honda Civic SI w/ a GSR B18c1 (99). I just changed the exhaust, and it was hitting my shifter, so we welded a mount to push it down, and after we welded my speedo stopped working. I got home, and my car started acting up (flickering lights, stuff turning off), and my battery wouldnt stay charged. The usual thing, you'd think it was an alternator.. paid $330 to change that, and still isnt keeping a charge. The only time it will stay charged is when it is boosted, as soon as the cables are off, the tester just shows the volts going down, and the car dies. The only thing I can think of, is the welding fried the ECU? I tried using the code reader, but it would show up as "unable to connect". Any ideas???