Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super push car that I am ready to drive off a cliff. had a idle surge hardship that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After frustrating 2-3 alternative 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. 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 burden when 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 dependence to be re-adjusted? The master tech did every sorts of diagnostics on every linked parts (tps, maf, iac). $100-200 every mature I receive it pull off the dealer for diagnostics.. upon going problems are essentially supplement up. I m undecided to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason
I’m 1500 too high.. or more. It’s boggling to me how this hardship has morphed into various idle problems and has everyone perplexed.. or thus it seems. I’ve been dealing considering this since July.. makes me appreciate my 240z 10 become old more.My daddy owns an sc400 and its been in fact good to him.. I’m having a hard become old not innate prickly subsequent to this purchase. I accomplish mood with its a good car though. Motor sounds gorgeous and is super mild behind government right.
I don’t have any check engine lights unless I unplug the MAF sensor. as soon as the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is then an intermittent popping solid coming at idle.
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