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Thread: What is a "Torque Reduction Request" signal line???

  1. #1

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    Default What is a "Torque Reduction Request" signal line???

    My 1993 TR V6 auto has recently began producing an error 62 signal that according to the error codes is "Open-circuited torque reduction request signal line". Can any tell me what and where that is? I have had some connector problems that have been cured by unplugging and plugging in various connectors and I'm hoping for the same.
    Thanks for any assistance.
    Cheers
    Stephen

  2. #2
    magna buff's Avatar
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    Default error 62

    two possibles
    code 62
    a sensor on the automatic transmission
    or
    Variable Induction control (VIC) valve position sensor fault
    source https://www.troublecodes.net/mitsu/

    #
    TR/TS repair manual not much help
    and I cant find the VIC sensor for sale online for a TR
    Last edited by magna buff; 04-02-2017 at 09:01 PM.

  3. #3

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    Quote Originally Posted by magna buff View Post
    two possibles
    code 62
    a sensor on the automatic transmission
    or
    Variable Induction control (VIC) valve position sensor fault
    source https://www.troublecodes.net/mitsu/

    #
    repair manual not much help
    and I cant find the VIC sensor for sale online for a TR
    Can you tell me where the VIC valve hides?
    Cheers
    Stephen

  4. #4

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    Default

    On the passenger side of the inlet manifold towards the top and closer to the firewall - near the suspension strut tower area. There should be two connectors - one for the variable induction servo motor and one for the butterfly valve position sensor.

  5. #5

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    Quote Originally Posted by fuel View Post
    On the passenger side of the inlet manifold towards the top and closer to the firewall - near the suspension strut tower area. There should be two connectors - one for the variable induction servo motor and one for the butterfly valve position sensor.
    Thanks for that. Found the connectors and some contacts looked a little dodgy so worked them in and out several times. Removed the battery terminal and cleared the error
    and so far so good. Let you know if it worked in a week or so.
    Cheers
    Stephen

  6. #6
    van0014's Avatar
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    When you turn the ignition to ON, the VIC servo should move so it knows what position its at. That should happen each time you turn off then back on from memory.

    If you have a torch, and someone to help, you could take off the intake hose, fully open the throttle and look into the intake to see if the VIC valve opens. Get someone to turn the key back and forth from Lock to On. That should get the VIC to work.

    The VIC helps with volumetric efficiency. Basically, the engine runs better with a wider range of throttle openings.
    Last edited by van0014; 11-02-2017 at 08:00 PM.

  7. #7

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    Update
    After a week and a half error 62 came back. Did a bit of digging through the repair manual and it said I should get 7-10 ohms
    resistance across the two connector terminals. I got 132 Ohms so it was stuffed. Off to the wreckers and got lucky. I found
    an Elante with an EFI300 engine with the exact layout as mine and the VIC was there. Half an hour
    and $13 later I had one that measured 10ohms so in it went. Cleared the error and so far (4days) so good.
    I opened up the old one and found that if I rotated the motor I could get anywhere between 15 and 130 Ohms.
    It's got a kind of stepper motor feel to it and I think the brushes are completely worn out.
    Anyway - will let you know how it goes.
    Thanks for the help everyone.
    Cheers
    Stephen
    Last edited by radtech; 18-03-2017 at 07:10 PM. Reason: spelling

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