Wiring Appendix VIII Sierra Transistor Ignition Module

Inductive Discharge Ignition ModuleWiring

Wiring Diagram for the Ford Sierra Inductive Discharge Ignition Module marked 83BB.

Viewed from the front face, with wires at bottom. Reading Left to Right.

This is system is regarded by pundits as the best option for Pinto Carburettor engines.(what is a pundit)

See note in Section XXII rearding a spare module.

The pin diagrams in the Haynes manual should not be read literally. ie: Pin 1 on the diagram may not be Pin 1 on the Ignition Module.

Note* This wire changes to Black/Yellow at pin 15 on the Sierra Ignition Switch, this wire also runs to the Anti run-on valve on the Weber Carburettor.

Note** This wire changes to a Black/Blue at pin 50 on the Sierra Ignition Switch

Pin 30 on the Ignition Switch is +ve supply colour Red

Distributor Wiring

If you follow the PWS instructions you will have removed the complete Ford Sierra Distributor/Coil loom and splicing this in is easy. If however you are starting from scratch note that the two Distributor wires on the BASIC inductive system are Pin 1 Violet, splices to Green/Yellow, and Pin 15 Orange, splices to Black/Red.

The Ford plug is a very fancy affair. Does it have a function? Note also a screening can may fitted and an earth to a push on tag.

Sierra Coil Wiring

Ford Coils are marked Pin 1 -ve, Pin 15 +ve and Pin 4 High Tension Output to Distributor

As a matter of interest my car was wired exactly as the above and it runs OK.

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© Colin Usher 2005