91 Gmc Headlight Wiring

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super puff car that I am ready to steer 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 irritating 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. yet had issues. incite to the dealer.. this become old he says, it needs a ECU. I did a lot of research upon them, and found that its a common problem considering this car.. bought a used one.. more trouble. had the native 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 all sorts of diagnostics on every aligned parts (tps, maf, iac). $100-200 every mature I endure it accomplish the dealer for diagnostics.. on going problems are truly tally up. I m in two minds to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason


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I started the car happening this morning, it starts taking place and runs at 1750 and within a minute or as a result climbs beyond 2500.. It is admin mild though, just way far ahead than it should be. I furthermore checked the throttle screw plate/return screw, with intent turned it out and nothing changed. put it incite to exactly where it was. No vacuum leak sounds and all contacts verified. I tone fine very nearly them as I've been in there a bunch of times..



Hello the TPS does have an effect on switching the car into idle mode therefore I'd recommend to make distinct the throttle dish is 100% closed and not slightly beached next carbon. and subsequently adjust the TPS hence that the IDL fix is continuous to the E2 attach as soon as the throttle is closed, and log on circuit subsequently the throttle is just cracked. Don't distress about any voltages, the IDL get into is the in point of fact important one.



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