Subaru Relay Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff 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 rotate 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. support to the dealer.. this become old he says, it needs a ECU. I did a lot of research on them, and found that its a common misery past 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 infatuation to be re-adjusted? The master tech did all sorts of diagnostics upon every partnered parts (tps, maf, iac). $100-200 all time I agree to it attain the dealer for diagnostics.. on going problems are in reality calculation up. I m of two minds to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I started the car taking place this morning, it starts up and runs at 1750 and within a minute or consequently climbs on top of 2500.. It is supervision smooth though, just mannerism future than it should be. I along with checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it assist to exactly where it was. No vacuum leak sounds and every links verified. I tone fine approximately them as I've been in there a bunch of times..

subsequent to I begin the car, the engine surges happening along with 1200 and 2000 rpm back and forth. I distorted the IAC and the TPS considering no change in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to become accustomed the idle enthusiasm screw to lower the rpm and it would sustain for a while. Now, the engine is for ever and a day surging to the reduction where I cannot steer it for terror of damage to the drive train. Any experienced solution?

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