I bought a 90 spec rs turbo for the running gear for an xr2, i then decided not to go ahead with the conversion, sold the loom and ecu's.

Now i want to use the engine for another xr2, need to replace the loom and ecu's but not sure which ones i need

The engine came out of a 90 escort rs turbo and has the knock sensor on the inlet, can anyone tell me which are the right ecu's to run with this ???

Thanks in advance