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Thread: 1JZ auto problems

  1. #1
    Junior Member Grease Monkey cressida_1jz's Avatar
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    Default 1JZ auto problems

    I was wondering if anyone can please help me.

    My car wont shift into overdrive.

    1st,2nd,3rd no probs.

    Theres error code 42 coming up(speed sensor) but that error codes been there since i did the conversion.

    Has anyone else heard of this problem before?
    1997 JZX100 Chaser Tourer V
    1991 Cressida Grande 1JZ-GTE *sold*

  2. #2
    Triptek Enhanced Backyard Mechanic triptek's Avatar
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    Default Re: 1JZ auto problems

    Have you had ovadrive since doing the conversion.
    1990 SW20 MR2 turbo Gen III 3S-GTE conversion, 3" exhaust = 264.9rwhp
    1985 JZA61 2JZ-GTE + TO4Z = 442.1rwhp @ 18psi
    1991 JZA70 Limited 2JZ-GTE vvti GTX30/76r
    1994 GZX90 Mark II 1GZ-FE V12
    1980 MA45 Undergoing Restoration

  3. #3
    Garage Queen Automotive Encyclopaedia ZZT231's Avatar
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    Victoria
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    Default Re: 1JZ auto problems

    Have you replaced the speed sensor?

    If SP2 is only connected it should still shift. With the OD wire from the ECU, don't ground it or have it connected as it will not go into 4th. Leave the wire un connected and it will go into 4th (that is with a JZX90 ECU)...
    Last edited by ZZT231; 19-11-2006 at 12:15 AM. Reason: Very long day...

  4. #4
    Junior Member Domestic Engineer
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    Default Re: 1JZ auto problems

    i can fix yr prob bring car to me end of next week

  5. #5
    Junior Member Grease Monkey cressida_1jz's Avatar
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    Default Re: 1JZ auto problems

    The overdrive has worked sfor 2 years now until last week.

    Can u PM me your phone number Sideshow?

    Or SMS the number to 0403129747.

    Thanks guys.
    1997 JZX100 Chaser Tourer V
    1991 Cressida Grande 1JZ-GTE *sold*

  6. #6
    Junior Member Domestic Engineer
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    Default Re: 1JZ auto problems

    0415 904 947

    call me say wed arvo see what time im free

    i usually get poeople to meet me at sss

  7. #7
    Junior Member Grease Monkey cressida_1jz's Avatar
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    Default Re: 1JZ auto problems

    I found the problem guys.

    The ECU is stuffed.

    I tried Bradens(Ribfeast) ECU and o/d worked.

    Thanks for all the help guys.
    1997 JZX100 Chaser Tourer V
    1991 Cressida Grande 1JZ-GTE *sold*

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