Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout from the rooftops car that I am ready to drive off a cliff. had a idle surge misfortune that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After bothersome 2-3 stand-in 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 become old he says, it needs a ECU. I did a lot of research on them, and found that its a common suffering similar to 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 need to be re-adjusted? The master tech did all sorts of diagnostics on every similar parts (tps, maf, iac). $100-200 every epoch I acknowledge it complete the dealer for diagnostics.. on going problems are really tallying up. I m of two minds to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason
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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 as a result it seems. I've been dealing following this back July.. makes me appreciate my 240z 10 grow old more.My dad owns an sc400 and its been in point of fact fine to him.. I'm having a hard period not innate mordant like this purchase. I do vibes subsequent to its a good car though. Motor sounds delightful and is super serene afterward meting out right.
Hello the TPS does have an effect on switching the car into idle mode therefore I'd suggest to create positive the throttle dish is 100% closed and not slightly grounded following carbon. and later get used to the TPS thus that the IDL attach is continuous to the E2 glue once the throttle is closed, and get into circuit bearing in mind the throttle is just cracked. Don't distress very nearly any voltages, the IDL gain access to is the essentially important one.
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