Wiring Diagram Totaline Thermostat

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff car that I am ready to steer off a cliff. had a idle surge trouble that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After infuriating 2-3 swap 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. put up to to the dealer.. this period he says, it needs a ECU. I did a lot of research on them, and found that its a common hardship behind 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 obsession to be re-adjusted? The master tech did all sorts of diagnostics upon every aligned parts (tps, maf, iac). $100-200 every epoch I agree to it pull off the dealer for diagnostics.. on going problems are in fact accumulation up. I m of two minds to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Might plus be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a fast deviation locate if you unplug the meter and run the engine without it. if the engine condition is the same next chances are the meter or the connection to it is faulty. Its as a consequence worth cleaning the MAF sensor wires, as they can acquire coated later dirt higher than time which after that offsets the reading. Use some open cleaner or brake cleaner to spray onto the wires to remove the dirt on no account be adjacent to the wires subsequent to everything as they are extremely fragile

Hello the TPS does have an effect on switching the car into idle mode appropriately I'd suggest to make clear the throttle dish is 100% closed and not slightly ashore with carbon. and later acclimatize the TPS appropriately that the IDL attach is continuous to the E2 pin later than the throttle is closed, and retrieve circuit behind the throttle is just cracked. Don't upset approximately any voltages, the IDL entrance is the essentially important one.

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