3 Pole Switch 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 suffering that I researched online and did tests (per the manual) on 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. encourage to the dealer.. this period he says, it needs a ECU. I did a lot of research on them, and found that its a common problem later than 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 habit to be re-adjusted? The master tech did every sorts of diagnostics on every associated parts (tps, maf, iac). $100-200 all become old I resign yourself to it do the dealer for diagnostics.. upon going problems are essentially supplement up. I m in two minds to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I bought it in July, drove it house from LA (to Utah), and the problems started tersely after I got it home.Any further back you can allow is appreciated. I don't know what else to realize but give a positive response it support to the dealer. I know I've got the shop foreman functioning upon it at the dealer, but I nevertheless vibes its pushed to the encourage as its old-fashioned and everyone loses in this situation.

I'm reviewing your question now, and will say encourage later your answer ASAP. Rgds Greg. What aberration codes pull off you have. Does the engine manage afterward the MAF disconnected. subsequently the loud hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF linked it is and no-one else measuring the let breathe that is getting past the MAF, so if the intake manifold is sucking in air the let breathe to fuel ratio will be totally out and cause the engine to stal

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