Engine harness question between auto and manual

[pwpanas]

Originally Posted by gambit1982

Hi,

I purchased a 2jzgte swap that comes with a manual tranny detached. There is however an auto flywheel that is attached to the engine. And I believe the engine harness must be automatic? The swap did not come with any ECU.

My question is.. is there any difference between an auto and manual engine harness? Will an auto ECU and a manual ECU fit the connector on the engine harness just fine? Will there be any modification required? Please help answer my question. Thank you.

The plug(s) on the harness that connect to the are the main differences between the manual and the auto harness. The same ecu will fit either harness (those plugs are identical, regardless of whether its a 6spd or auto).

If you want to modify an auto tranny to adapt to a manual transmission, then yes it would have to be modified - due to the differing transmission connectors.