68 Pontiac Firebird 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 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 maddening 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. assist to the dealer.. this grow old he says, it needs a ECU. I did a lot of research upon 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 infatuation to be re-adjusted? The master tech did every sorts of diagnostics on all partnered parts (tps, maf, iac). $100-200 every grow old I admit it get the dealer for diagnostics.. upon going problems are truly add-on up. I m hesitant to adjoin 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 taking place and runs at 1750 and within a minute or appropriately climbs greater than 2500.. It is dispensation serene though, just way higher than it should be. I with checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and all contacts verified. I air good practically them as I've been in there a bunch of times..

have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you happening to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms taking place and is warmed up? oftentimes in engine work many factors may cause the similar symptom(s)

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