Wiring Diagram For 2007 Lexus Rx 350

Check the hose clips for tightness and examine the trunking for any cracks or splits and moreover every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best artifice to locate a leak is to have the engine organization and hot and then vaporizer lighter gas /propane or brake cleaner a propos each joint in turn. If the engine rev s stirring you ve found your leak.

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Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a quick aberration find if you unplug the meter and run the engine without it. if the engine condition is the thesame after that chances are the meter or the membership to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can get coated similar to dirt higher than epoch which after that offsets the reading. Use some contact cleaner or brake cleaner to spray can onto the wires to sever the dirt on no account be adjacent to the wires when all as they are enormously fragile

in the manner of I begin the car, the engine surges happening surrounded by 1200 and 2000 rpm encourage and forth. I changed the IAC and the TPS with no alter in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle quickness screw to belittle the rpm and it would sustain for a while. Now, the engine is for eternity surging to the reduction where I cannot drive it for distress of broken to the steer train. Any experienced solution?

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