Ok, after I installed my digital display everything worked fine. Tach, fuel, temp everything worked fine.
Then one day I was driving and my fuel and temp display slowly fade away but my kph display stays on. Then after a little while it turns back on. Stays on for a while and then does the same thing. It comes and goes. All my connections are soldered and all connections are snug.
Could I have a faulty display? Is there a way to test this?
Please help.

up! I also need to check if my gauge is faulty. can you also help me what wiring diagram you used? I can't even make my tach work.

http://www.youtube.com/watch?v=OWGWSznH ... 6bwG2pAcyw