markits95nissan

Recently acquired 1995 Nissan Pathfinder 4WD pushing 200,000 miles. Spedometer and RPMs were not working or working intermittently. Cleaned and switched out circuit board using a '98 I found at the junk yard with less miles. Tightened screws on loose components. Spedometer now works. I still can't get the RPMs to register correctly. It starts to read and then gets sluggish or sometimes it pegs out when the engine is obviously not over revving. I have never had it read accurately yet.