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Injector Driver Voltage

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  • Injector Driver Voltage

    What is the voltage the injectors are driven at?
    S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

  • #2
    12V matey. The +ve feed is triggered by the fuel pump relay thru S24 or S28 from memory.

    The ECU then provides a switched path to 0V for millisecond durations for each individual injector.

    I'm closer to building my fuel test gizmo after some tests with the B-Box last weekend. Wassup anyway ?


    Paul
    Paul Nugent
    Webmaster http://S2central.net
    Administrator http://S2forum.com

    1994 S2 Coupe ABY - aka Project Lazarus
    2001 A6 allroad 2.5TDi - family tank
    2003 S4 Avant 4.2 V8 - daily burble

    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

    There are only 10 kinds of people that understand binary - those that do, and those that don't

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    • #3
      I just want to add a function to the EGT display to monitor how hard the injectors are working. I can switch it to monitor one injector, and show on the display, a percentage of the injector duty cycle.

      Just making sure it wasn't a low regulated voltage it was using - thanks.
      S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

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      • #4
        Originally posted by Doug_RS2
        I just want to add a function to the EGT display to monitor how hard the injectors are working. I can switch it to monitor one injector, and show on the display, a percentage of the injector duty cycle.

        Just making sure it wasn't a low regulated voltage it was using - thanks.

        A 'fang' display - neato !
        Paul Nugent
        Webmaster http://S2central.net
        Administrator http://S2forum.com

        1994 S2 Coupe ABY - aka Project Lazarus
        2001 A6 allroad 2.5TDi - family tank
        2003 S4 Avant 4.2 V8 - daily burble

        Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

        There are only 10 kinds of people that understand binary - those that do, and those that don't

        Comment

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