Another Problem has arised.....

1994 TS Magna Exec

Car has been running fine since motor swap - from a late 93 TR, bar one problem. Irrespective of temperature/air con on or off, the thermo fans are on, as soon as the ignition is on there on.
I've changed the relays with no difference.
What do i check/change now?

could be a stuck relay and or faulty temp sensor

Check the thermo switch. On most cars they are found in the radiator. You may have bumped it during the engine change.

My thermal switch (bottom right of radiator) failed and my fans stayed on constantly too. $22 from repco, but the o ring that came with it made it leak about a week later, so I got the o-ring from mitsubishi for about $4