Alright!! I have a 88 rst which I put the fuel comp and all sensors In but only the range works the that plugs in under the back seat. I was told It was proberley the speed sensor as they r normaly the problem. But I am now on my 3rd one and its still made no differance I have done the self diagnostic test on it and it shows 0 its supposed 2 go up to 2 hundred and something isnt it?? PLEASE HELP Its realy annoying me