In my quest to improve the lighting in my 420, I installed LED's in the instrument panel. That was a mistake. Now my gas and temp gauges are maxed out and the oil pressure only goes to 1 bar. When I switch the high beams on, the oil pressure goes to zero as well the tach drops too. I don't know what happened. The freakin LED's made the lighting worse too. All of this for nothing. I just hope that its the actual instruments that are messed up and not the wiring in the car, or else I'm up a creek without a paddle.

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual