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Thread: 4l60 transmission question

  1. #1
    Electronic Ignition!
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    4l60 transmission question

    I just had installed a 4L 60 E in my 1995 Pontiac Firebird and the builder said the transmission had been gone through but now I get a code 83. I’m thinking this transmission is a 94 or earlier because I Ohm the wires out and I don’t see the torque converter PWM solenoid. It runs good and shifts fine but it sets the 83 code. My question is will this mess up the transmission if I keep driving it like this? Next weekend I’m going to pull the pan and find out but until then I was just wondering if it’s safe to drive?
    Last edited by lyonheart; 1 Week Ago at 03:05 AM.

  2. #2
    Fuel Injected!
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    If you're getting code 83, your 4L60E is NOT pulsewidth-modulating the TCC.
    That's not a bad thing. Were I you, I'd do the following to my .bin:
    *DISable 'TCC Control Feedback Diagnostic Error 83'
    Set 'TCC Apply Rate vs Gear vs %TPS' = 124.5
    Set 'TCC Release Rate vs Gear vs %TPS' = 124.5
    Set 'TCC Apply Operating Point vs %TPS vs Gear' = 99.6
    Set 'TCC Release Operating Point vs %TPS vs Gear' = 0.0

    Those are '94 values, by the way. Use those & you'll never worry about any code 83 complications ever again.
    THEY are NOT Lying to You. You are NOT Lying to Yourself. You ARE Being Lied to - BY Your Self
    The Last Psychiatrist, aka Ö Alone Ö


  3. #3
    Electronic Ignition!
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    Thank you I will try that. So do I set all TCC apply rate vs gear vs % TPS to 124.5 and so on with the rest of them?
    Last edited by lyonheart; 1 Week Ago at 02:41 AM.

  4. #4
    Electronic Ignition!
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    Never mind I’ve got it. Thank you.

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