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Thread: 6l90 tcc pressure

  1. #1

    6l90 tcc pressure

    Anyone able to get 6l90 ZL1 tcc pressure higher than 110 psi? I'm commanding 150 and 110 is the highest I get in the scanner. Max pressure is 150 and the desired pressure table is 150.

  2. #2
    Senior Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    1,157
    You're only seeing an inferred pressure which is a transfer function based off the solenoid amps.
    You can raise line (increase virtual torque) as that feeds the converter circuit. There is a TCC pressure limit valve in the circuit so you'll only get it so high.