Tach drawing to much power?

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  • jeswaw
    Grease Monkey
    • May 2008
    • 337

    #1

    Tach drawing to much power?

    Hey guys, I swapped my car and had all the gauges working minus the tach until yesterday. I wired it up and put the car all back together and now with the tach hooked up it wants to blow the fuse. It wont blow it right away, but it blew twice in one night. My car is an 86 so I had to run the wire for the tach under the dash. I did this on my last swap but didn't run into this problem. Suggestions or pointers?
  • jrdeamicis
    E30 Modder
    • Nov 2008
    • 956

    #2
    So you tied the tach into the C103 connector in the glove box?
    Past Car : E30 S50 6 Speed 5 Lug 3.73
    Current : Z3 S50 OBD2 (Smog Legal) 6 Speed BBS RN Dual Ear Diff
    ___________________________________________
    BNB Designs
    Engine Swaps, Fabrication, Innovation, General Repair
    Richmond CA
    Julian 848-248-8029

    Comment

    • jeswaw
      Grease Monkey
      • May 2008
      • 337

      #3
      Originally posted by jrdeamicis
      So you tied the tach into the C103 connector in the glove box?
      Correct, black wire off of my cluster going to the black wire in in the C101 connector.

      Comment

      • jrdeamicis
        E30 Modder
        • Nov 2008
        • 956

        #4
        What engine harness are you using?
        Past Car : E30 S50 6 Speed 5 Lug 3.73
        Current : Z3 S50 OBD2 (Smog Legal) 6 Speed BBS RN Dual Ear Diff
        ___________________________________________
        BNB Designs
        Engine Swaps, Fabrication, Innovation, General Repair
        Richmond CA
        Julian 848-248-8029

        Comment

        • jeswaw
          Grease Monkey
          • May 2008
          • 337

          #5
          Originally posted by jrdeamicis
          What engine harness are you using?
          Im running the 5 series. Its not doing it anymore, I haven't changed anything either. Weird.

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