wire, tach, back, jump, connection, alot, start, strait, middle, black, problems.which, 8920, adapter, cluster, wiring
- hey i just got the msd 8920 and im having some problems.which wire in the back of the cluster is for tach? i went wit black wire in the middle connection and all it does is jump up to like 5k rpm and strait back down when i start the car. thanx alot