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Tach pinout on ECU

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    #1

    Tach pinout on ECU

    Ok got a 93 10th Anniversary and I'm trying to find the pin on the ECU for the tach signal. any help would be greatly appreciated. I'm trying to install an Apexi Neo (hold all bad talk please lol). Really just gonna use it for gauges and a VERY mild tune. Thanks in advance.
    Tags: None
    #2
    I know the tach signal wire is blue on the cluster and distributor which would be easier, as for the ecu pinout i haven't looked at any or had a need to in a good while but i'm sure goobs of obd1 honda ecu pinout schematics are out there probably even on here somewhere.

    02 Crv
    02 silverado Ex cab Z71, 2011 TRD 17" wheels, 245/80/17, ls1 cam, AFE intake, 3" catback, tuned by Larry at LSXperformance&pcm tuning driven daily.
    92 Acura Legend colbalt blue LS Coupe, custom intake, custom vibrant 2.5 cat back, led cluster and high beams, 2016 Coyote GT 18x8 wheels 235/40/18.
    Coming Soon Tein TSX coilovers.

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      #3
      Ive got a schematic from Mitchell On-Demand but it doens't list a tach pinout. Only TDC, CYL Sensor, and Crank Sensor. Would one of those give me the RPM?

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        #4
        Look at ur distributor wires, the blue one is ur tach signal

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          #5
          I'm aware of the blue wire at the dizzy, however I am trying to see if there is a pin on the ECU that is the RM signal.

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            #6
            From what i came up with while searching google shows that there is a igniter pin ICM. Pin 21 and 22.
            1991 Honda Accord 2DR LX 180,000 Miles RIP

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              #7
              thank you curtie. i will give that a try.

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