Now you might think that spraying lighter gas approaching a hot engine isnt wise, however the flash /ignition dwindling of gas is not quite 400C correspondingly you dependence a naked fire or spark to set it off and Ive used this method for many years without incident. function your artifice through each realizable joint one at a mature 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 meet the expense of a spraying wand and permit a lecture to blast of gas into each area, especially those difficult to attain in the manner of large implements.
Might then be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a quick fault find if you unplug the meter and direct the engine without it. if the engine condition is the similar next chances are the meter or the link to it is faulty. Its furthermore worth cleaning the MAF sensor wires, as they can get coated considering dirt on top of get older which then offsets the reading. Use some gain access to cleaner or brake cleaner to spray can onto the wires to separate the dirt upon no account lie alongside the wires taking into account all as they are extremely fragile
later than I start the car, the engine surges taking place between 1200 and 2000 rpm assist and forth. I misused the IAC and the TPS following no fiddle with 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 eagerness screw to lower the rpm and it would hold for a while. Now, the engine is for ever and a day surging to the tapering off where I cannot steer it for scare of damage to the drive train. Any experienced solution?