If youd like to have access to a wiring diagram ignition component connector pin outs and the entire testing procedure for a no start or a misfire problem in one place then take a look at the following diagnostic manuals in downloadable pdf format. Since it is only used to turn the relays on there is less draw on the stock 30 year old scout wiring.

Troubled Child Gm Tbi Ignition Wiring
Tbi distributor wiring diagram. Tbi wiring harness diagram tbi wiring harness diagram every electric arrangement is composed of various unique components. System their wiring connections and a possible source or two with part. Each component ought to be set and connected with different parts in specific manner. 87 s10 wiring diagram together with wiring diagrams for chevy suburban also chevy tbi distributor wiring diagram as well as toyota yaris engine. A1 grnwht this wire is used to. 1992 1995 43l astrosafari pdf.
The gm system expects a more modern coil as well one that is powered by 12v at all times versus the oem coil that needs 9v during regular running and 12v at start. Distributor first the big picture block diagram. Generic tbi fuel injection block diagram acronyms individual components and their function schematic diagram. Otherwise the structure will not function as it ought to be. Duraspark to gm 8 pin hei wiring. Heres a list of the pins but they are also on the wiring diagrams above.
Contributed by john b vegadad reference. Building the v6vega by john thawley over the manufacturing life of the h body several gear ratios were offered in either a or ring gear configuration. Tbi wiring harness conversion. Both relays are energized from the 12v ignition wire that used to go to the side of the coil. Gm hei 8 pin ignition module wiring diagram for tbi. The components you will see on the left.