ECU fuses blown

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  • tacq
    S2Forum Buff
    • Aug 2003
    • 30
    • Country: Sweden
    #1

    ECU fuses blown

    Does anyone have any ideas of what to check when we repeatly do blow (randomly) the enginefuses for the ecu (S2 3B)?
    I assume there is a short somewhere on the loom and plan is to use a high voltage ohm meter to check each wiring.
    Any input that may save time is appretiated.
    www.irry.com
    Tags: None
    • zlobo
      S2Forum Maniac
      • Jan 2004
      • 967
      • Country: Sweden
      #2
      i have moticed a zener diod in my ecu causing the same problem. check the resistance in the injectors,do you have the right fuse in?
      ABT C5 Lord Of The Rings
      2004 1/4 Mile ET 12.00 191Km/h @1,5Bar
      2009 1/4 Mile ET 11.92 213Km/h @ 1,5Bar 437WHp
      2010 1/4 Mile ET 11.45 110Km/h @ 1,5Bar 437Whp
      kostic.nu

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        • Jeffer
          S2Forum Fiend
          • Jul 2003
          • 2057
          • Country: Netherlands
          #3
          I've had it once, a shortcut in the MAF wiring. It was touching the metal and the fuse blew.

          Good luck!
          RS2 Black - stock 315 HP
          RS2 RS blau - stock 315 HP
          Sport Quattro - 1005 HP
          High Octane website

            Comment

            • tacq
              S2Forum Buff
              • Aug 2003
              • 30
              • Country: Sweden
              #4
              Isolation measurements

              So its to inspect all wires by hand and then measure resistance with high voltage ... <sigh> . Luckily I should get paid for the work
              www.irry.com

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