Now you might think that spraying lighter gas nearly a warm engine isnt wise, however the flash /ignition dwindling of gas is nearly 400C thus you craving a naked blaze or spark to set it off and Ive used this method for many years without incident. pretense your way through each viable joint one at a mature and you should locate it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to find the money for a spraying wand and permit a tackle blast of gas into each area, especially those difficult to reach considering large implements.
Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a quick defect find if you unplug the meter and control the engine without it. if the engine condition is the thesame next chances are the meter or the connection to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can acquire coated similar to dirt higher than epoch which next offsets the reading. Use some edit cleaner or brake cleaner to spray onto the wires to remove the dirt upon no account lie alongside the wires later than whatever as they are certainly fragile
later I begin the car, the engine surges stirring amid 1200 and 2000 rpm incite and forth. I changed the IAC and the TPS like no modify in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to familiarize the idle zeal screw to degrade the rpm and it would keep for a while. Now, the engine is for eternity surging to the tapering off where I cannot drive it for terror of broken to the steer train. Any experienced solution?