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View Full Version : Gear Swap and now service brake system/abs light



exploder
May 19th, 2009, 08:04 AM
I put a set of gears in a customers car and went in to tune the pcm for the larger tires and the gears. As far as I know I did everything correctly, but after a few miles the lights come on. I went through the tutorial and followed the steps, but I seem to be missing something. The gear ratio is 4:10...