89 F250 Ecm Wiring Diagram

Hello, I have repaired higher than 30000 vehicles in my career and I obsession to question you questions since I am not there in person to build up facts, data, or to exam your vehicle. I may question you to law examination in my stead. If investigation is needed and you would rather not law testing, I can find the money for my best advice, Fuel pressure?

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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 realize a fast malformation find if you unplug the meter and control the engine without it. if the engine condition is the same later chances are the meter or the link to it is faulty. Its in addition to worth cleaning the MAF sensor wires, as they can acquire coated later than dirt exceeding become old which subsequently offsets the reading. Use some get into cleaner or brake cleaner to vaporizer onto the wires to cut off the dirt upon no account touch the wires following everything as they are no question fragile

This could be a large vacuum leak ,with the MAF united it is solitary measuring the ventilate that is getting similar to the MAF, suitably if the intake manifold is sucking in let breathe the freshen to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. following carb cleaner spray spray in the area of the hissing as soon as the engine management and subsequent to you hear the engine stall or rev well ahead there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.

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