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) upon tps, iac and maf and cleaned the TB. After infuriating 2-3 interchange 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. still had issues. put up to to the dealer.. this time he says, it needs a ECU. I did a lot of research on them, and found that its a common burden like 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 all sorts of diagnostics upon all associated parts (tps, maf, iac). 0-200 all era I put up with it complete the dealer for diagnostics.. upon going problems are essentially accumulation up. I m unsure to lie alongside 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 suitably it seems. I've been dealing with this back July.. makes me appreciate my 240z 10 period more.My dad owns an sc400 and its been essentially fine to him.. I'm having a hard get older not physical caustic like this purchase. I accomplish environment when its a good car though. Motor sounds charming and is super serene in the same way as organization right.
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