I have a 2000 Cherokee Sport....while driving the engine shuts down for about 1 second, the speedometer drops to zero, all power is lost & then POOF! it justs keeps on going like nothing happened.....? Dealership has replaced the crank sensor & cam sensor, problem still exists....they now want to replace my entire wiring harness because they say there is a short somewhere ($1000) & while they're at it replace the ECM ($650)...a lot of cash! I found a used ecm on ebay for $150 and figure I might just try my luck at seeing if that takes care of it...I have a remote start system that has been working fine for years, but wondering if I should just rip that out to make sure no wires having to do with that are compromised....anybody heard of this before? would love to hear any suggestions...