M
magoo
Guest
My 86 aluminum head Z-51 coupe has developed a bucking problem when slowing down. It accelerates fine, cruises fine, and runs well under load, but when I slow down to stop or for any reason it begins bucking. I would say it feels like the ignition is cutting out for a fraction of a second and then coming back on, which sets up a pretty good shake in the car. It does not shut off. I also notice that it starts very well when it's cold, but cranks too long when hot. Sometimes giving it some throttle will make it start better, which I don't think is normal for a fuel injected car. I paper clipped the diagnostic socket, but it just repeated the 12 code over and over way more than 3 times. There are only 18000 miles on the car so I doubt that much was ever done to her. This is why I bought a C4, to start to learn something new about these computerized machines, So here we go. Any help would be greatly appreciated. I have searched the forums quite a bit. I forgot to mention, I love the car.... Thanks
Mike
Mike