Results 1 to 2 of 2

Thread: TCC Control L67

  1. #1
    Tuner CTX-SLPR's Avatar
    Join Date
    Jan 2008
    Livermore, CA

    TCC Control L67


    Now I know this is going to sound weird but I want to double check myself here. Looking at the TCC duty cycle tables (min and max), it's obviously PWM driving the TCC. Now I'm planning on using the 4T65E output to drive a 4L80E which has a bianary lockup, i.e. on and off. I figure that I bascially need to pick temp and line pressures that I don't want lockup below (or above for that matter) and set the tables identically to either 0 or 100 to convert to bianary correct?
    Central TEXAS Sleeper
    Experimental Physicist

    1964 Riviera (4.1L Buick Turbo6, 4L80E, L67 PCM)
    2012 Hyundai Genesis Sedan (3.8 GDI, 8spd Getrag)
    1998 Chevrolet Suburban K2500 (454, 4L80E)
    1970 Riviera
    1965 Riviera GS (465 Super Wildcat, SP400) #'s Matching
    1967 Skylark Deluxe
    1997.5 Regal GS

  2. #2
    Join Date
    May 2007
    Upstate NY
    That should work yes, however, there are other tables in the L67 4T65 PCM that HPT can't control. An example, I tried to disable my TC when it was failing, even after changing the tables we had (such as TC engagement speed) it would still once and a while still lock (e.g., i couldn't shut if off permanently).

    Your idea though should work as long as the computer doesn't get too smart on ya. I did try it once on mine 0 and 100 and it would lock unlock but the 4t65 TC isn't made to lock 100%, it's designed to slip, so my engagement was hard as hell and the car would shutter.
    98 Buick GSX IS3 Heads/GenVblower/cammed/intercooled and stalled
    02 Collector Edition Trans Am WS6
    94 S-10 with Rancho 3" lift on 33's
    93 Typhoon
    07 Tahoe