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1 The attached image is a 12v car spotlight It was connected by a red wire and a black wire I replaced the bulb but didn't notice the hidden brown wire until a few days later !!!! I do not know if the brown wire was originally attached . Can I ignore the brown wire? 2 The connection on the brown wire is half the size of the black and red connections. There does not seem to be a connection point for the brown wire. This spotlight came off another vehicle years ago . 3 Maybe the auto electrician who originally wired the system only need a red and black wire to be connected? it's a H2 halogen bulb which costs $31 and difficult to source so I am reluctant to experiment with switching wires. to see what does and does not work. 4 If I connect it without the brown wire ,will it stuff things up? I now have only the red and black wires re-connected. If they are connected back the front will that cause a problem? Thanks in advance

rb20det Non-constant Spark Issue Looking for Advice on a rb20det WEIRD Sparking Issue I'm running factory rb20det ecu with square plug igniter. Checking for Spark with coils out and plug grounded to valve covers while spinning the CAS by hand. On first rotation of the CAS *ALL* plugs spark in correct order. Then on second, third and so on rotations only No.1 cyl coil sparks and the rest do not spark. Wait for 30 seconds and try again, exactly the same thing happens. Stop rotations and try Again right away or after a couple of seconds still, only No.1 cyl coil sparks and the rest do not. Can anyone shed some light on whats happening here? ps. Have not yet sourced another cas or igniter - tomorrows jobs