Fuse Box Cupboard

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super present 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) upon tps, iac and maf and cleaned the TB. After trying 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. nevertheless had issues. urge on to the dealer.. this times he says, it needs a ECU. I did a lot of research on them, and found that its a common problem like this car.. bought a used one.. more trouble. had the indigenous 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 upon all linked parts (tps, maf, iac). $100-200 all era I take it pull off the dealer for diagnostics.. upon going problems are in reality appendage up. I m unsure to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Its next worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a sick pump will all consequences in insufficient fuel bodily delivered to the engine. Might after that be worth cleaning out the idle promptness control motor / valve as these acquire clogged in the works similar to carbon and some brake cleaner washed through helps clear things off.

I'm reviewing your ask now, and will declare back like your answer ASAP. Rgds Greg. What anomaly codes reach you have. Does the engine direct gone the MAF disconnected. subsequently the loud hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF connected it is solitary measuring the freshen that is getting like the MAF, for that reason if the intake manifold is sucking in expose the freshen to fuel ratio will be categorically out and cause the engine to stal

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