I wonder if it would be possible to rewire my '85 CA car's tach to work like the federal model? I can't figure out the problem I have since I can't find a wiring diagram specific to the CA model. I'd would like more than anything right now to have a working tach. The tach itself is fine but there is something that has gone bad within the wiring itself.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012