Car Wiring Alarm

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout out car that I am ready to drive off a cliff. had a idle surge pain that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After a pain 2-3 vary 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. nevertheless had issues. urge on to the dealer.. this period he says, it needs a ECU. I did a lot of research upon them, and found that its a common pain subsequent to 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 obsession to be re-adjusted? The master tech did all sorts of diagnostics on every joined parts (tps, maf, iac). $100-200 all epoch I recognize it attain the dealer for diagnostics.. on going problems are truly adding together up. I m hesitant to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason


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Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a quick oddity find if you unplug the meter and govern the engine without it. if the engine condition is the thesame after that chances are the meter or the attachment to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can acquire coated considering dirt beyond time which after that offsets the reading. Use some way in cleaner or brake cleaner to spray onto the wires to cut off the dirt upon no account be adjacent to the wires taking into consideration everything as they are certainly fragile



Hello the TPS does have an effect upon switching the car into idle mode hence I'd recommend to make determined the throttle plate is 100% closed and not slightly grounded in imitation of carbon. and next adapt the TPS hence that the IDL glue is continuous to the E2 glue once the throttle is closed, and approach circuit later than the throttle is just cracked. Don't distress roughly any voltages, the IDL contact is the truly important one.



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