OBC Doesn't register speed or MPG.
I just bought a 1991 325i convertible.
The car is in excellent condition but there are two things bothering me.
The on-board computer (OBC) display is bright and everything works except the functions dealing with speed, distance, and fuel consumption.
All the gauges on my dash work fine. I believe it's the moto-meter version as it doesn't have the stop pins for the gauges.
Any ideas of why only these functions don't register? It either shows "blank" by displaying ---- or 0.0.
The second problem is my key doesn't lock or unlock the glove box, and since it's a convertible, this is a huge inconvenience. Is it possible to reset the tumbler to match my key. I really don't want to carry two keys if I can help it.
Any suggestions, tips or advice will be greatly appreciated.