tach problems
#1
tach problems
i have a 90 coupe been swap from 4 cyl to 8 cyl i put a 5 inch autometer tach in it and it reads out wrong it readin about double the rpms it should. what could cause this? it doesnt a have a switch for a certain number of cyl. or ay extra wires only the red, white, green, and black
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