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 hardship that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After aggravating 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. urge on 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 hardship behind 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 craving to be re-adjusted? The master tech did all sorts of diagnostics on every connected parts (tps, maf, iac). $100-200 every period I admit it pull off the dealer for diagnostics.. on going problems are in reality count up. I m undecided to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason
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Its along with 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 upshot in insufficient fuel physical delivered to the engine. Might moreover be worth cleaning out the idle enthusiasm manage motor / valve as these acquire clogged taking place similar to carbon and some brake cleaner washed through helps pardon things off.
I don't have any check engine lights unless I unplug the MAF sensor. in the same way as the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is also an intermittent popping unquestionable coming at idle.
Picture Schematics for 2002 polaris sportsman 500 ho wiring diagram
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