Check the hose clips for tightness and examine the trunking for any cracks or splits and after that every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretentiousness to locate a leak is to have the engine direction and warm and later spray lighter gas /propane or brake cleaner roughly each joint in turn. If the engine rev s stirring you ve found your leak.
Its as a consequence worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all upshot in insufficient fuel visceral delivered to the engine. Might afterward be worth cleaning out the idle quickness rule motor / valve as these get clogged occurring next carbon and some brake cleaner washed through helps pardon things off.
Hello the TPS does have an effect on switching the car into idle mode thus I'd recommend to make definite the throttle plate is 100% closed and not slightly stuck with carbon. and after that get used to the TPS suitably that the IDL pin is continuous to the E2 attach in imitation of the throttle is closed, and admittance circuit subsequent to the throttle is just cracked. Don't upset roughly any voltages, the IDL read is the really important one.