Originally Posted by DazC
There is no such item fitted to an Escort RST. The only ignition modules fitted to distributors (onto the outside of the dizzy) on a Ford Escort were on the Lucas distributors on the carburettor models (your RST is a Bosch dizzy and fuel injection).
The ECU controls the ignition system on the RST without needing an ignition amp/module.
So which part is it i have? Other people have said to check the ignition module as they had this prob before and this is what the guy sold me