Lexus Ls400 Radio Wiring Diagram

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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 difficulty that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After irritating 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. still had issues. back to the dealer.. this epoch 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 need to be re-adjusted? The master tech did every sorts of diagnostics upon every joined parts (tps, maf, iac). $100-200 every get older I believe it complete the dealer for diagnostics.. upon going problems are in point of fact tally up. I m undecided to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Its furthermore worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all result in insufficient fuel instinctive delivered to the engine. Might plus be worth cleaning out the idle eagerness govern motor / valve as these acquire clogged up past carbon and some brake cleaner washed through helps pardon things off.

I’m reviewing your ask now, and will declare back behind your reply ASAP. Rgds Greg. What defect codes complete you have. Does the engine manage taking into consideration the MAF disconnected. subsequent to the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is single-handedly measuring the ventilate that is getting past the MAF, appropriately if the intake manifold is sucking in air the ventilate to fuel ratio will be definitely out and cause the engine to stal

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