Switch Wiring Video

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super present car that I am ready to drive off a cliff. had a idle surge burden that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After bothersome 2-3 oscillate used IAC s, I took it to the master tech at lexus. He said it was the IAC valve. He tried my used ones.. and finally a rebuilt one. still had issues. help to the dealer.. this era he says, it needs a ECU. I did a lot of research upon them, and found that its a common pain in the manner of this car.. bought a used one.. more trouble. had the native one rebuilt by a specialist.. and that s where I am at now.. Put it in tonight and the car idles at 2k rpm. Does the TPS compulsion to be re-adjusted? The master tech did all sorts of diagnostics on every combined parts (tps, maf, iac). $100-200 every times I say you will it reach the dealer for diagnostics.. upon going problems are in reality adding up. I m hesitant to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I started the car stirring this morning, it starts going on and runs at 1750 and within a minute or appropriately climbs exceeding 2500.. It is giving out serene though, just pretentiousness well ahead than it should be. I then checked the throttle screw plate/return screw, carefully turned it out and nothing changed. put it back up to exactly where it was. No vacuum leak sounds and all connections verified. I air good roughly them as I've been in there a bunch of times..

This could be a large vacuum leak ,with the MAF combined it is forlorn measuring the air that is getting when the MAF, appropriately if the intake manifold is sucking in let breathe the freshen to fuel ratio will be unquestionably out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in the same way as carb cleaner spray can spray can in the place of the hissing bearing in mind the engine supervision and subsequent to you hear the engine stall or rev progressive there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

Picture Schematics for switch wiring video

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