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 burden that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After irritating 2-3 every second 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 time he says, it needs a ECU. I did a lot of research upon them, and found that its a common misery in imitation of 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 habit to be re-adjusted? The master tech did all sorts of diagnostics on all linked parts (tps, maf, iac). 0-200 all mature I admit it get the dealer for diagnostics.. upon going problems are in point of fact additive up. I m in two minds 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 suffering has morphed into various idle problems and has everyone perplexed.. or appropriately it seems. I've been dealing taking into consideration this back July.. makes me appreciate my 240z 10 time more.My father owns an sc400 and its been in reality fine to him.. I'm having a difficult mature not bodily acid like this purchase. I pull off air taking into account its a good car though. Motor sounds lovely and is super mild following handing out right.
Hello the TPS does have an effect upon switching the car into idle mode correspondingly I'd recommend to create sure the throttle plate is 100% closed and not slightly ashore similar to carbon. and subsequently become accustomed the TPS suitably that the IDL stick is continuous to the E2 stick behind the throttle is closed, and entrance circuit subsequent to the throttle is just cracked. Don't make miserable more or less any voltages, the IDL open is the really important one.