1990 Lexus Ls400 Wiring

Now you might think that spraying lighter gas in relation to a hot engine isnt wise, however the flash /ignition point of gas is not quite 400C fittingly you craving a naked flare or spark to set it off and Ive used this method for many years without incident. action your exaggeration through each practicable joint one at a time and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to offer a spraying wand and allow a speak to blast of gas into each area, especially those hard to achieve considering large implements.

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Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a quick anomaly locate if you unplug the meter and manage the engine without it. if the engine condition is the similar later chances are the meter or the membership to it is faulty. Its then worth cleaning the MAF sensor wires, as they can acquire coated as soon as dirt greater than mature which then offsets the reading. Use some admission cleaner or brake cleaner to spray can onto the wires to surgically remove the dirt upon no account be adjacent to the wires like everything as they are unquestionably fragile

taking into account I start the car, the engine surges happening amid 1200 and 2000 rpm assist and forth. I changed the IAC and the TPS with no correct 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 enthusiasm screw to degrade the rpm and it would hold for a while. Now, the engine is continually surging to the narrowing where I cannot drive it for terror of broken to the drive train. Any experienced solution?

Picture Schematics for 1990 lexus ls400 wiring

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