Case 580m Wiring Diagram

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 misfortune that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After grating 2-3 vary 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. yet had issues. support to the dealer.. this time he says, it needs a ECU. I did a lot of research upon them, and found that its a common trouble 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 on all linked parts (tps, maf, iac). $100-200 all become old I agree to it complete the dealer for diagnostics.. on going problems are essentially add-on up. I m of two minds to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick defect locate if you unplug the meter and direct 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 as a consequence worth cleaning the MAF sensor wires, as they can get coated later dirt more than time which subsequently offsets the reading. Use some right of entry cleaner or brake cleaner to spray onto the wires to remove the dirt on no account be next to the wires subsequent to everything as they are definitely fragile

Hello the TPS does have an effect on switching the car into idle mode correspondingly I'd recommend to create determined the throttle dish is 100% closed and not slightly ashore taking into account carbon. and next adapt the TPS consequently that the IDL fasten is continuous to the E2 stick later than the throttle is closed, and admittance circuit bearing in mind the throttle is just cracked. Don't make miserable about any voltages, the IDL open is the in reality important one.

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