4L60E Torque Converter unlocks at 0% throttle

[68Camaro]

E38 ECU with T42 TCU and 2009 truck OS

converter unlocks during decel (coast) 0% throttle and the re-applies as throttle is re-applied....

anyway to keep the converter locked through this scenario and only allow unlock by speed only?

[Russ K]

Set the Min Throttle Release > Low & High Speed TPS fields to 0%. Stock is usually 1-2%

Russ Kemp

[68Camaro]

Set the Min Throttle Release > Low & High Speed TPS fields to 0%. Stock is usually 1-2%

Hey Russ - Thanks for the response

I have it set like that already and it will stay locked until you start to re-apply the throttle at which point it unlocks and then re-locks - very annoying....

DONALD DEAN 55 CHEVY LS3 A4 BETA JP TUNE 77.hpt I am attaching .hpt file if you have time to glance at it and hopefully find something...

Thanks
JP

[Russ K]

Yes, that's about the best you can do with it. I would raise the TCC Max DC to 100.

And the 3-4 shift pressure row doesn't do much. I add to the 3-4 Pressure Modifier, add 20 psi to the entire table. Then add 10 psi at a time until the 3-4 firmness is were you want it.

Russ Kemp