YIKES! This thread is STILL going on?! Everything since solid state ignitions has been computer controlled to some extent or another. Ever wonder why it's almost impossibe to get even a toaster to make toast? Really, I can't believe how many brands and 2 and 4 slice toasters I've been through in the last 10-15 years. And not one of them seems capable of making toast to my liking. I mean is it impossible to get two sides toasted to the same consistency? Electronics is in EVERYTHING, and most of it doesn't work worth a dam! I mean refrigerators, dishwashers, washing machines, you name it, its made cheaper from printed circuit boards made in places overseas, and just about all of it is JUNK. At this point we're lucky anything works at all, yet alone as intended, or for as long as promised. How 'bout those compact fluorescent bulbs, you know with the Mercury in them? 10,000 hours?! Yeah, more like 10 hours, or dead on arrival at your house. So the government adding more junk to our tractors to stop our outrageous pollution of the planet is the top priority? How about stopping the oil companies from their egregious pollution of the atmosphere, waters, lakes, rivers, oceans? Nah, that's way too costly to tackle. It's much easier to get us little guys to pay more now, and in future to keep the diesel particles out of the airstream. I'm not saying cleaner diesel engines aren't important, they are, but they're not what the country really needs to focus on for a viable future of cleaner air.