Spider Turbo wiring loom diagram

[adrians]

Hi All,

1981 Spider, original a Turbo now running just factory FI.

Does anyone have a wiring diagram for the additional Turbo harness that incorporates the booster switches in the FI circuit of a Spider Turbo ? I just noticed that only two of the three wires for the Throttle Position Sensor are actually connected, one in disconnected inside the wiring loom.

Thanks

[rridge]

The Turbo mod disconnects the enrichment circuit from the TPS and connects it to one of the pressure switches. The Mirafiori library has a document called "Fiat Turbo Technical Introduction" which contains more info on the boost enrichment circuits. The way to de-turbo one of these models correctly is to get the missing pieces from a stock vehicle including the stock FI harness.

[adrians]

Thanks - I'll login and have a look for it.