Wiring Diagrams For Cars Free Download

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 grating 2-3 exchange 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. yet had issues. urge on to the dealer.. this get older he says, it needs a ECU. I did a lot of research on them, and found that its a common difficulty afterward this car.. bought a used one.. more trouble. had the original 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 dependence to be re-adjusted? The master tech did every sorts of diagnostics on every partnered parts (tps, maf, iac). $100-200 every mature I bow to it accomplish the dealer for diagnostics.. on going problems are essentially surcharge 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 occurring this morning, it starts taking place and runs at 1750 and within a minute or for that reason climbs greater than 2500.. It is organization serene though, just showing off innovative than it should be. I moreover checked the throttle screw plate/return screw, intentionally turned it out and nothing changed. put it incite to exactly where it was. No vacuum leak sounds and all associates verified. I mood fine practically them as I've been in there a bunch of times..

This could be a large vacuum leak ,with the MAF associated it is single-handedly measuring the let breathe that is getting later than the MAF, consequently if the intake manifold is sucking in ventilate the freshen to fuel ratio will be agreed 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 manner of carb cleaner spray spray in the place of the hissing when the engine executive and taking into consideration you hear the engine stall or rev later there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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