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Thread: Fuel injecting 3.5 v8 1986

  1. 18th August 2010, 05:34 PM #1
    kennedy
    kennedy is offline Fossicker
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    Fuel injecting 3.5 v8 1986

    Right lads, I am fitting a fuel injection system off an 1986 R/R to my 1981 3.5 Stage 1. Problem is the wiring harness does not seem to match the AFM (supposedly 88 R/R). The harness has a 7 pin plug whereas the AFM has a five pin plug. Can the two systems be wired together, ie: lose two wires from the 7 pin plug or can the plug on the AFM be changed to a 7 pin plug? Need help ASAP as this is my work vehicle and I have jobs awaiting and cash to collect.

    Thanks.
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  2. 19th August 2010, 05:33 AM #2
    Freestyler Guest
    Sounds like you have a hot wire EFI harness and the flapper sensor. They cannot be hooked together as the sensors on the earlyer flapper type Monifold are different. The hot wire one is a better one though
    Tim
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  3. 19th August 2010, 07:40 AM #3
    PhilipA
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    Sounds the other way around to me.
    The MAF only has 4 wires.
    I think you have a MAF not a flapper.
    The correct air flow sensor has a flap inside which you can see by looking in, while the MAF (wrong) has a screen on the front and just a hole in it with a small hole on one side.
    Look in markets to see a photo.
    Regards Philip A
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  4. 19th August 2010, 06:58 PM #4
    kennedy
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    afm-maf

    so mate could you post pics to kenmead@dragnet.com.au
    so I know what I`m looking at
    thanks steve
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  5. 19th August 2010, 08:52 PM #5
    PhilipA
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    Look here and you will see the wrong one.
    Rover 14CUX Hot Wire Mass Flow EFI: Service and Troubleshooting
    Regards Philip A
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  6. 21st August 2010, 06:54 AM #6
    kennedy
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    afm

    got that to print thanks
    my harness has 7 pins & meter has 5 pins
    would u know part number for the 7 pin air flow meter
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