Check the hose clips for tightness and inspect the trunking for any cracks or splits and next all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best artifice to find a leak is to have the engine giving out and warm and then vaporizer lighter gas /propane or brake cleaner nearly each joint in turn. If the engine rev s taking place you ve found your leak.
Its in addition to worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a below par pump will every outcome in insufficient fuel creature delivered to the engine. Might in addition to be worth cleaning out the idle swiftness control motor / valve as these acquire clogged stirring in imitation of carbon and some brake cleaner washed through helps free things off.
Hello the TPS does have an effect on switching the car into idle mode in view of that I'd recommend to create definite the throttle dish is 100% closed and not slightly high and dry behind carbon. and then accustom yourself the TPS hence that the IDL attach is continuous to the E2 pin like the throttle is closed, and gate circuit gone the throttle is just cracked. Don't trouble very nearly any voltages, the IDL contact is the in fact important one.