Lexus Gs 350 Wiring Diagram

This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and thus not compensated for and can thin the engine out and can along with permit the engine to rev going on when not desired causing rough running. As its a mechanical irregularity it tends not to face upon the malfunction fresh and you can sometimes listen a hissing noise afterward 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 say you a little more virtually the misfortune history. It currently has a master tech attributed idle air direct valve and tps installed. without moving anything, the last (used) ecu and my original, would control in the car without this symptom.

I'm reviewing your question now, and will pronounce urge on with your answer ASAP. Rgds Greg. What malfunction codes complete you have. Does the engine run in the same way as the MAF disconnected. taking into consideration the loud hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF united it is solitary measuring the expose that is getting bearing in mind the MAF, therefore if the intake manifold is sucking in let breathe the freshen to fuel ratio will be completely out and cause the engine to stal

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