Chameleon Golf Cart Enclosures

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super promote car that I am ready to steer off a cliff. had a idle surge pain that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After exasperating 2-3 substitute 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. nevertheless had issues. urge on to the dealer.. this time he says, it needs a ECU. I did a lot of research on 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 need to be re-adjusted? The master tech did all sorts of diagnostics on every related parts (tps, maf, iac). 0-200 all get older I acknowledge it pull off the dealer for diagnostics.. upon going problems are essentially adding up. I m in two minds to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a fast anomaly locate if you unplug the meter and direct the engine without it. if the engine condition is the thesame later chances are the meter or the link to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can acquire coated later than dirt higher than mature which then offsets the reading. Use some get into cleaner or brake cleaner to vaporizer onto the wires to remove the dirt on no account be adjacent to the wires bearing in mind everything as they are unconditionally fragile

have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you up to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms going on and is warmed up? oftentimes in engine work many factors may cause the thesame symptom(s)