we have a 90 accord with a 94 h22 swap, was running well for 2 years +. all of a sudden the speedo starts working intermidantly (sp?) it got worse as time progressed and now reads only for a second at a time very rarely. the trans died so we but a new one in and the problem is still there. here is where it stops making sense. with the speed sensor out put still plugged in you can spin the gear and the speedo will read like it should. however with it in the trans it has the problem rarely working. it is getting spun by the diff and if you take the very top off where the electrical plugs in you can see it spining so i know the gear is good. the trans oil is fine. any guesses?