Hi mate, Fiesta Si is external pats, The little black box is tucked up behind the glove box The receiver is around the ignition barrel,
Escort is internal pats and the pats reciever again is around the ignition barrel, are you using the loom from the escort, ? you'll probably need bits of the internal loom to allow you to connect the pats receiver. i assume you already have the matching keys to go with the ecu? and the ecu is from the same car as the engine and loom?
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