Torque Converter Lockup TCC Reverse Manual Valve body won't work.

[LS1Hack]

Hello,

My tuner and I have been stuck trying to get the lockup to work on a Manualised 4L60e Reverse pattern valve body.

The valve body only allows lockup when in 4th only. It how its been engineered.
The wiring is correct back to the ls1 PCM & the TCC can be switched on using a scan tool manually via the ODBC port. – All good works.

My thoughts are since the shift
Solenoid A,
Solenoid B,
3-2 Solenoid,
EPC Solenoid
& Trans Temp Sensor
are deleted and no longer plugged into the loom, the PCM will not activate the TCC as it doesn’t have enough inputs trigger it on.

I thought the TPS & VSS Sensor would be enough to trigger the TCC when the parameters were met in the PCM as programmed in EFI Live.

My question is what else does the LS1 PCM require as input to make the TCC work?

The car is otherwise a standard 2000 Holden Commodore with a factory fitted LS1/4l60E

Any ideas would be greatly appreciated.

Steven Kirk


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Updated.

Plugged all the sensors back into the factory loom above. TCC Still won't engage.