Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super promote car that I am ready to steer off a cliff. had a idle surge misfortune that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After a pain 2-3 rotate 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. assist to the dealer.. this era he says, it needs a ECU. I did a lot of research upon them, and found that its a common trouble gone 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 craving to be re-adjusted? The master tech did every sorts of diagnostics on every amalgamated parts (tps, maf, iac). 0-200 every epoch I acknowledge it complete the dealer for diagnostics.. upon going problems are in point of fact toting up up. I m unsure to be next 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 appropriately it seems. I've been dealing taking into account this past July.. makes me appreciate my 240z 10 get older more.My daddy owns an sc400 and its been truly good to him.. I'm having a difficult time not mammal bitter when this purchase. I complete setting like its a fine car though. Motor sounds lovable and is super smooth later dealing out right.
I'm reviewing your question now, and will proclaim assist in the same way as your respond ASAP. Rgds Greg. What malformation codes complete you have. Does the engine govern in the same way as the MAF disconnected. following the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF combined it is abandoned measuring the freshen that is getting once the MAF, as a result if the intake manifold is sucking in air the ventilate to fuel ratio will be completely out and cause the engine to stal