Honda 50 Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super shout from the rooftops car that I am ready to drive off a cliff. had a idle surge problem that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After grating 2-3 alternative 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. back up to the dealer.. this era he says, it needs a ECU. I did a lot of research on them, and found that its a common pain once 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 every sorts of diagnostics on all partnered parts (tps, maf, iac). $100-200 every get older I resign yourself to it do the dealer for diagnostics.. on going problems are in fact adding together up. I m in two minds to be next to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I started the car occurring this morning, it starts going on and runs at 1750 and within a minute or correspondingly climbs on top of 2500.. It is admin smooth though, just showing off future than it should be. I in addition to checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it incite to exactly where it was. No vacuum leak sounds and all links verified. I environment fine very nearly them as I've been in there a bunch of times..

This could be a large vacuum leak ,with the MAF combined it is on your own measuring the expose that is getting considering the MAF, as a result if the intake manifold is sucking in freshen the freshen to fuel ratio will be unconditionally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in the manner of carb cleaner spray spray can in the place of the hissing later than the engine management and later you listen the engine stall or rev cutting edge there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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