7 Pin Wiring Diagram For Semi Truck

Hello, I have repaired greater than 30000 vehicles in my career and I compulsion to question you questions before I am not there in person to gather together facts, data, or to test your vehicle. I may question you to pretend psychoanalysis in my stead. If scrutiny is needed and you would rather not performance testing, I can give my best advice, Fuel pressure?

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Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast aberration locate if you unplug the meter and rule the engine without it. if the engine condition is the thesame then chances are the meter or the association to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated like dirt on top of become old which then offsets the reading. Use some door cleaner or brake cleaner to spray can onto the wires to separate the dirt on no account lie alongside the wires similar to all as they are categorically fragile

bearing in mind I begin the car, the engine surges in the works surrounded by 1200 and 2000 rpm support and forth. I misrepresented the IAC and the TPS bearing in mind no amend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adjust the idle keenness screw to demean the rpm and it would withhold for a while. Now, the engine is all the time surging to the lessening where I cannot steer it for fear of broken to the drive train. Any experienced solution?

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