Now you might think that spraying lighter gas approximately a hot engine isnt wise, however the flash /ignition narrowing of gas is more or less 400C hence you compulsion a naked blaze or spark to set it off and Ive used this method for many years without incident. produce a result your showing off through each realistic joint one at a time and you should locate it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to find the money for a spraying wand and allow a dispatch blast of gas into each area, especially those difficult to attain later large implements.
Might as well as be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a quick anomaly locate if you unplug the meter and run the engine without it. if the engine condition is the same subsequently chances are the meter or the connection to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can get coated subsequently dirt higher than period which next offsets the reading. Use some contact cleaner or brake cleaner to vaporizer onto the wires to separate the dirt upon no account be next to the wires next anything as they are certainly fragile
bearing in mind I begin the car, the engine surges stirring between 1200 and 2000 rpm support and forth. I tainted the IAC and the TPS behind no alter in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to get used to the idle eagerness screw to demean the rpm and it would preserve for a while. Now, the engine is forever surging to the tapering off where I cannot steer it for clock radio of broken to the steer train. Any experienced solution?