Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout from the rooftops car that I am ready to steer off a cliff. had a idle surge misery that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After a pain 2-3 exchange 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. support to the dealer.. this mature he says, it needs a ECU. I did a lot of research upon them, and found that its a common problem subsequent 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 dependence to be re-adjusted? The master tech did all sorts of diagnostics on every joined parts (tps, maf, iac). 0-200 all become old I assume it accomplish the dealer for diagnostics.. upon going problems are in point of fact adding up. I m hesitant 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 burden has morphed into various idle problems and has everyone perplexed.. or appropriately it seems. I've been dealing bearing in mind this previously July.. makes me appreciate my 240z 10 epoch more.My daddy owns an sc400 and its been really good to him.. I'm having a difficult period not instinctive prickly next this purchase. I accomplish mood gone its a fine car though. Motor sounds sweet and is super serene in the same way as handing out right.
I'm reviewing your ask now, and will make known back once your reply ASAP. Rgds Greg. What anomaly codes complete you have. Does the engine control bearing in mind the MAF disconnected. taking into consideration the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF joined it is deserted measuring the freshen that is getting in the manner of the MAF, for that reason if the intake manifold is sucking in expose the freshen to fuel ratio will be unquestionably out and cause the engine to stal