Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout out car that I am ready to steer off a cliff. had a idle surge pain that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After maddening 2-3 alternating 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. back up to the dealer.. this period he says, it needs a ECU. I did a lot of research on them, and found that its a common burden in imitation of 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 every sorts of diagnostics upon every connected parts (tps, maf, iac). 0-200 all become old I take on it get the dealer for diagnostics.. upon going problems are essentially appendage up. I m unsure 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 suffering has morphed into various idle problems and has everyone perplexed.. or therefore it seems. I've been dealing in the manner of this since July.. makes me appreciate my 240z 10 become old more.My father owns an sc400 and its been truly fine to him.. I'm having a hard grow old not being caustic in imitation of this purchase. I attain character considering its a good car though. Motor sounds cute and is super mild following handing out right.
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