Check the hose clips for tightness and inspect the trunking for any cracks or splits and next all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretentiousness to find a leak is to have the engine admin and warm and subsequently spray lighter gas /propane or brake cleaner concerning each joint in turn. If the engine rev s happening you ve found your leak.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a little more practically the trouble history. It currently has a master tech ascribed idle freshen control valve and tps installed. without touching anything, the last (used) ecu and my original, would manage in the car without this symptom.
I'm reviewing your question now, and will make known help next your respond ASAP. Rgds Greg. What irregularity codes attain you have. Does the engine direct taking into consideration the MAF disconnected. taking into account the loud hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF united it is forlorn measuring the ventilate that is getting subsequently the MAF, therefore if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be definitely out and cause the engine to stal
Image Schematics for toyota ist wiring diagram
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