Check the hose clips for tightness and inspect the trunking for any cracks or splits and as well as every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best pretension to find a leak is to have the engine dealing out and hot and after that spray can lighter gas /propane or brake cleaner in this area each joint in turn. If the engine rev s happening 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 below par pump will every upshot in insufficient fuel brute delivered to the engine. Might furthermore be worth cleaning out the idle rapidity run motor / valve as these acquire clogged up taking into consideration carbon and some brake cleaner washed through helps release things off.
Hello the TPS does have an effect upon switching the car into idle mode fittingly I'd recommend to make certain the throttle plate is 100% closed and not slightly beached in the manner of carbon. and subsequently familiarize the TPS suitably that the IDL fasten is continuous to the E2 pin behind the throttle is closed, and contact circuit subsequent to the throttle is just cracked. Don't distress nearly any voltages, the IDL entrance is the essentially important one.