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Thread: Are latch board and chip extender compatible

  1. #1
    Supporting Member II Turbo Mopar Contributor rgl10's Avatar
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    Are latch board and chip extender compatible

    Still having problems with my tuning. I have a 90 SBEC in Spirit 2.5 turbo. The sbec is socketed and runs a latch board so I can use erasable chips in it. I got tired of pulling the computer out ever ten minutes to try another tune so I bought a chip extender and cable from Moates. I can not get it to work at all. I tried leaving the latch board on the sbec and I get no check engine light when I turn the key on. I moved the latch adapter to the moates extender board and still no check engine light and therefore no engine startup. Anyone had a setup like this that might know what Im doing wrong? i tried the chip in both directions and the ribbon cable in both directions, never starts. Put the chip and latch adapter back on the sbec, fires right up. I thought maybe i got a bad part either the cable or the chip extender or maybe its not compatible with the latch board. Any help would be greatly appreciated. Thanks in advance!

  2. #2
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Are latch board and chip extender compatible

    I used one of Rob L.'s older boards with an extender from Moates and the car ran really well.

  3. #3
    Supporting Member II Turbo Mopar Contributor rgl10's Avatar
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    Re: Are latch board and chip extender compatible

    Quote Originally Posted by cordes View Post
    I used one of Rob L.'s older boards with an extender from Moates and the car ran really well.
    Did you leave the latch board on the sbec or move it the the extender board where the chip goes?

  4. #4
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Are latch board and chip extender compatible

    I had it on the board, and then the extender plugged into the latch board, and finally, the chip plugged into a ZIF socket.

  5. #5
    Supporting Member II Turbo Mopar Contributor rgl10's Avatar
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    Re: Are latch board and chip extender compatible

    I tried that iteration but it did not work. I guess there is a chance I got a bad cable or board..

  6. #6
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: Are latch board and chip extender compatible

    i remember my car not liking the longer extender cables.

    granted it was a LM but it liked the shorter cable and then the extender and a zif socket and then the chip.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  7. #7
    Moderator Turbo Mopar Staff Force Fed Mopar's Avatar
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    Re: Are latch board and chip extender compatible

    I used an extender to tune on a 91 RT, worked fine with the latch board installed in the computer, then the extender plugged into it.
    Rob M.
    '89 Turbo GTC
    2.5 TIII swap is here!

    Project LookOwt
    '91 Daytona ES, 61k original miles, Rick Lozier's old 3.0 nitrous car
    Back to basics, then the mods go back on....

  8. #8
    Supporting Member II Turbo Mopar Contributor rgl10's Avatar
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    Re: Are latch board and chip extender compatible

    I guess I will run a continuity test on the cable and see if maybe there is a problem.

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