Figure I would add this PDF file of installing the S/R PCM into a pre ’99 1⁄2 ZX2.
The following instructions allow a Powertrain Control Module (PCM) from an Escort ZX2 S/R to be used in any Escort ZX2 manufactured from 1997 to 1998, with a manual transmission. Early ZX2s have a slightly different circuit design for monitoring the air conditioning system. When attempting to replace the PCM with one from a newer model year, the cooling fan runs constantly at high speed. The air conditioning also does not work properly.
srPcm.pdf (1.4 MB)