84 22r Carburetor Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super market car that I am ready to steer off a cliff. had a idle surge suffering that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After frustrating 2-3 every other 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. encourage to the dealer.. this times he says, it needs a ECU. I did a lot of research on them, and found that its a common problem following this car.. bought a used one.. more trouble. had the indigenous 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 on all connected parts (tps, maf, iac). $100-200 every become old I receive it attain the dealer for diagnostics.. on going problems are in reality adjunct up. I m in two minds to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a tiny more just about the trouble history. It currently has a master tech qualified idle air run valve and tps installed. without touching anything, the last (used) ecu and my original, would run in the car without this symptom.

I'm reviewing your ask now, and will publish back up considering your answer ASAP. Rgds Greg. What oddity codes get you have. Does the engine direct bearing in mind the MAF disconnected. following the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF combined it is unaided measuring the expose that is getting behind the MAF, suitably if the intake manifold is sucking in let breathe the air to fuel ratio will be completely out and cause the engine to stal

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