Just so you can see, heres my fusebox, but bear in mind this is a MK3 XR3i loom (that my cabriolet had in it from the factory), that i myself have re-wired for a Series 2 engine and management (hence the KE brown module), but as you can see the heated the slot you mention is empty.



Cold start enrichment and boost enrichment is controlled solely by the Hydro Electric Pressure Actuator, which in turn is controlled by the KE Jetronic ECU