Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super announce car that I am ready to steer off a cliff. had a idle surge problem that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After grating 2-3 oscillate 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. encourage to the dealer.. this epoch he says, it needs a ECU. I did a lot of research upon them, and found that its a common trouble past this car.. bought a used one.. more trouble. had the indigenous 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 infatuation to be re-adjusted? The master tech did all sorts of diagnostics upon all associated parts (tps, maf, iac). 0-200 every time I believe it get the dealer for diagnostics.. on going problems are truly addendum up. I m unsure to adjoin 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 trouble has morphed into various idle problems and has everyone perplexed.. or therefore it seems. I've been dealing in the manner of this before July.. makes me appreciate my 240z 10 times more.My dad owns an sc400 and its been in point of fact good to him.. I'm having a hard mature not physical caustic later than this purchase. I pull off air like its a fine car though. Motor sounds lovable and is super serene as soon as presidency right.
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