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SuperBlackS14 · 01-01-2013, 10:24 AM

Is the speed sensor from the Chassis? Whichever ECU you're using, be sure to use the appropriate speed sensor. IE S13 ECU (for the S13 Motor I'm assuming) then use an S13 Speed Sensor even with an S14 trans because the Voltage Signals are different, and it's a bolt on swap.

Assuming you have done that already, check voltages with a multimeter and refer to the FSM for where those wires are behind your dash. If none of that fixes it, you might need a new speedo.

01-01-2013, 10:24 AM	#2
SuperBlackS14 Zilvia Junkie Join Date: Sep 2011 Location: Albany, NY Age: 34 Posts: 381 Trader Rating: (4)	Is the speed sensor from the Chassis? Whichever ECU you're using, be sure to use the appropriate speed sensor. IE S13 ECU (for the S13 Motor I'm assuming) then use an S13 Speed Sensor even with an S14 trans because the Voltage Signals are different, and it's a bolt on swap. Assuming you have done that already, check voltages with a multimeter and refer to the FSM for where those wires are behind your dash. If none of that fixes it, you might need a new speedo. __________________ "Power Is Nothing Without Control"