5 Terminal Relay Light Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super spread around car that I am ready to drive 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 exasperating 2-3 substitute 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. encourage to the dealer.. this become old he says, it needs a ECU. I did a lot of research on them, and found that its a common burden in the manner of 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 obsession to be re-adjusted? The master tech did all sorts of diagnostics upon all joined parts (tps, maf, iac). $100-200 all epoch I believe it do the dealer for diagnostics.. upon going problems are in reality tallying up. I m undecided to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I bought it in July, drove it home from LA (to Utah), and the problems started snappishly after I got it home.Any other help you can pay for is appreciated. I don't know what else to get but bow to it assist to the dealer. I know I've got the shop foreman functional upon it at the dealer, but I nevertheless character its pushed to the encourage as its outdated and everyone loses in this situation.

I don't have any check engine lights unless I unplug the MAF sensor. taking into consideration the MAF is plugged in after that the car will stall unless I put my foot upon the accelerator. There is after that an intermittent popping strong coming at idle.

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