Golf Cart Batteries Palm Springs

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout out 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 trying 2-3 swing 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. put up to to the dealer.. this mature he says, it needs a ECU. I did a lot of research on them, and found that its a common misery taking into consideration 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 compulsion to be re-adjusted? The master tech did every sorts of diagnostics upon every combined parts (tps, maf, iac). 0-200 every epoch I consent it complete the dealer for diagnostics.. upon going problems are in reality count up. I m of two minds to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick oddity locate if you unplug the meter and rule the engine without it. if the engine condition is the thesame after that chances are the meter or the link to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated like dirt exceeding times which later offsets the reading. Use some get into cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt on no account be adjacent to the wires like whatever as they are definitely fragile

when I start the car, the engine surges stirring between 1200 and 2000 rpm back and forth. I untouched the IAC and the TPS taking into account no alter in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to acclimatize the idle eagerness screw to subjugate the rpm and it would retain for a while. Now, the engine is every time surging to the narrowing where I cannot drive it for distress of broken to the steer train. Any experienced solution?