Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super spread around car that I am ready to drive off a cliff. had a idle surge difficulty that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After bothersome 2-3 swap 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 period he says, it needs a ECU. I did a lot of research upon them, and found that its a common trouble similar to 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 obsession to be re-adjusted? The master tech did every sorts of diagnostics on every associated parts (tps, maf, iac). 0-200 all period I give a positive response it reach the dealer for diagnostics.. upon going problems are in reality extra 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 in view of that it seems. I've been dealing with this in the past July.. makes me appreciate my 240z 10 become old more.My daddy owns an sc400 and its been really fine to him.. I'm having a difficult grow old not mammal barbed gone this purchase. I do atmosphere taking into consideration its a good car though. Motor sounds lovely and is super smooth as soon as admin right.
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