I am getting a kick out of you guys talking back and forth about that Lean Burn System. I bought a 1978 Chrysler LeBaron with the Lean Burn on it. It always ran rough, fouled the plugs within 10,000 miles, died and wouldn't start until it had cooled off again, lacked power and burned gas like crazy. One day my father-in-law, who was a great shade tree mechanic - and one of my brother-in-laws, who was a computer technician from the private sector who worked for the government on one of their local bases fixing their computers - got under the hood with me to figure out what was going on. We soon discover the choke was set so heavy it never really fully went off. We fixed that and it helped but still had problems. Finally my computer-whiz brother-in-law figured out a way of testing the computer (boy did your picture bring back memories). I don't remember the details but it somehow involved running a wire from one point on the computer, bypassing some stuff to hook up somewhere else on the back of the computer and then reading if there was any juice going through the wire. The idea, if I remember correctly, was that if the computer wasn't working, there would be no juice and the meter would stay dead. It did. I took it back to the dealer the next week and told them what we did and that we needed a new computer installed under warranty. I soon got a call saying they had run their 'normal' tests on the computer and it tested out fine. I immediately went down to the shop, looked up the shop foreman and told him about the test we did. He actually realized what my brother-in-law had done, although I hadn't a clue, and ran the same test. He soon called back and said I'd be getting a new computer. (I figure it had tried to adjust for the choke for so long that it had finally given up trying)(and don't quote me on how my brother-in-law did the test because I didn't understand his computer whiz then and it was 40 years ago to boot!). From then on the car started right up and ran smooth as silk, had more power and got up to 25 miles to the gallon on the freeway doing 75 with the air conditioning running. It was an absolute joy to drive from then on and I think I almost cried when I had to trade it in for a work truck.