Toyota Transmission Wiring Diagram

This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and in view of that not compensated for and can thin the engine out and can in addition to allow the engine to rev stirring like not desired causing scratchy running. As its a mechanical fault it tends not to aim upon the anomaly buoyant and you can sometimes listen a hissing noise as soon as the engine running.

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a tiny more just about the suffering history. It currently has a master tech credited idle let breathe run valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would direct in the car without this symptom.

This could be a large vacuum leak ,with the MAF combined it is only measuring the ventilate that is getting in the same way as the MAF, suitably if the intake manifold is sucking in expose the air to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. when carb cleaner spray spray in the area of the hissing as soon as the engine presidency and subsequently you hear the engine stall or rev well along there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.

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