I did an auto to manual swap, boosted, and went from obd2 to obd1 via a conversion harness on my 96 civic ex. When I first ran my car after the swap all seemed normal, but now that all the ic piping is hooked up and I ran it my speedo occasionally goes satanic and starts spinning around random amounts in random directions sometimes doing a full 360 or 720 and the trip meter starts running really fast when I am not even moving. Any ideas what on earth is going on or should I just call a catholic priest to come exercise the demons?

 

bump for helping me figure this out. Vehicle speed sensor?

 

Evil spirits?? Make a compromise with it. Maybe it will make your car faster. :