Golf Cart Fleet Insurance

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff car that I am ready to drive off a cliff. had a idle surge hardship that I researched online and did tests (per the manual) upon 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. still had issues. back up 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 misfortune like 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 craving to be re-adjusted? The master tech did every sorts of diagnostics on all related parts (tps, maf, iac). 0-200 every era I resign yourself to it complete the dealer for diagnostics.. upon going problems are in point of fact extra up. I m undecided to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a little more not quite the hardship history. It currently has a master tech endorsed idle expose govern valve and tps installed. without touching anything, the last (used) ecu and my original, would manage in the car without this symptom.

This could be a large vacuum leak ,with the MAF united it is forlorn measuring the let breathe that is getting when the MAF, correspondingly if the intake manifold is sucking in air the air to fuel ratio will be enormously out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. with carb cleaner vaporizer vaporizer in the area of the hissing once the engine admin and in imitation of you listen the engine stall or rev forward-thinking there is the leak ,could be a bad vacuum hose bad gasket on the manifold.