This info might save someone hours of headache that I recently went through: About 6 months ago I was on the freeway going about 70mph downhill when my ignition just died. Pulled over and figured out that I had popped the 10amp ECMB fuse. Replaced it, and went about my trip with no problems. Just last week, I had the same thing happen again, but became a real pain when I started popping these fuses (With resulting engine stalling) at the rate of one fuse every 2-40 miles. Must be a common problem, because dealer was quick to deduce that issue was with defective fuel sending unit, located in gas tank. Expensive fix ($284 part at Napa, plus $50 more for new fuel pump, all AC Delco), but everything works great now!