skyhiranger Zuki Guru Posts: 7,416 Joined: Jun 30, 2005 Logged This writeup explains and shows how to install and connect a VSS and the CEL wire in an 86-88 samurai cluster, when swapping in a trackick 1.6 8V engine and wiring. It might work for the 88.5 and later clusters too, but I haven't verified it.I labeled the pics with what they show....so read the pic name, to determine what you are looking at.All of the cluster plug wiring changes are in the samurai 12 pin plug. Pin #1 is at the top, pin #12 is at the bottom.Trackick and samurai cluster plug wires have the same type of terminals on the end. So you can remove the samurai wire from the plug and put the trackick wire in its place.CEL connectionsThe samurai CEL/sensor light wire is brown/black and should be in position 6. Remove this wire and install the trackick CEL cluster wire from the ECM (violet/yellow) into position 6 of the samurai plug.That is all you have to do for the CEL to light up when the trackick ECM detects a fault and for the CEL to flash codes when the appropriate pins are shorted in the plug up by the battery.Now, when you short the pins in the 4 pin plug up by the battery, the CEL will flash the codes, but the CEL will flash bright and dim, it won't go completely out between flashes. While this will work to read codes, you can modify the cluster so the CEL goes completely out when flashing. You simply cut and remove, or desolder and remove, a diode under the green sheet on the backside of the cluster. Look at pic #1 and you can see where the diode is soldered to the trace. The diode position is designated by a -|>|- mark on the green film. Take the lower light bulbs out and lift the green film up enough to get to the diode, so you can remove it.VSS installation and connectionsI installed the metal type VSS into this cluster. The plastic type VSS will work, but the plastic has to be trimmed off, to get it to fit in the cluster. And some people have had issues with getting the plastic VSS to work....I don't know if they damage the VSS, when they remove the plastic, or if the VSS just doesn't sit far enough up into the cluster to get a good reading from the speedo (the metal VSS sticks up into the cluster farther than the plastic one).The VSS connections are a ground and the wire that goes to the ECM.Look at pic #2 and you can see the metal VSS installed in the cluster. It is held in by 2 screws that screw into some pre-existing holes in the side of the cluster. Note the dark colored screw that is threaded into the VSS. That screw will be removed and installed through the back of the cluster to make the connection between the trace on the back of the cluster and the VSS. In pic #3 you can see where I have connected a ground wire to the upper screw in the VSS (the ground wire ring terminal is the red one that is hidden by the CEL screw bracket).Pic #4 shows how I had to slightly bend the CEL connection bracket to clear the VSS ground screw.I hooked the other end of the VSS ground wire to one of the screws sticking out of the back of the cluster (see pic #5).You can now install the speedo into the cluster and put the 2 screws in the back of the cluster that hold the speedo assembly in.The VSS wire (yellow) to the ECM, gets put in position #3 of the samurai cluster plug.If you follow the trace from postion #3, you will notice that it dead ends and needs a jumper soldered in to get it over to the screw that will be installed in the back of the cluster to make the trace to VSS connection. See pic #6, to see where the jumper wire is soldered in (just to the right of the hole where the CEL reset wires and the VSS ground wire comes out of) and the screw is installed in the back of the cluster to make the trace to VSS connection. Before you solder the wire in and install the screw, you must scrape the green coating off the trace. Otherwise the solder won't stick and the screw won't make connection to the copper trace.Notice there are 3 screws along the right side to make trace to VSS and CEL connections. The top 2 screws were already in the cluster. They were for the existing CEL/sensor light connections. The lower screw is the new screw that is added that is part of the VSS connection to the ECM.