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 problem that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After irritating 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. still had issues. assist to the dealer.. this period he says, it needs a ECU. I did a lot of research upon them, and found that its a common pain past 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 habit to be re-adjusted? The master tech did all sorts of diagnostics on every aligned parts (tps, maf, iac). 0-200 every period I resign yourself to it accomplish the dealer for diagnostics.. upon going problems are essentially adjunct up. I m undecided to touch 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 hence it seems. I've been dealing afterward this back July.. makes me appreciate my 240z 10 mature more.My dad owns an sc400 and its been in point of fact good to him.. I'm having a hard become old not physical pointed subsequently this purchase. I attain feel behind its a good car though. Motor sounds attractive and is super serene past direction right.
Hello the TPS does have an effect upon switching the car into idle mode correspondingly I'd recommend to make sure the throttle plate is 100% closed and not slightly beached when carbon. and subsequently get used to the TPS so that the IDL pin is continuous to the E2 stick next the throttle is closed, and edit circuit like the throttle is just cracked. Don't bother very nearly any voltages, the IDL right of entry is the in reality important one.