94 Silverado 3500 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 aggravating 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. nevertheless had issues. encourage to the dealer.. this get older he says, it needs a ECU. I did a lot of research upon them, and found that its a common pain in the manner of 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 need to be re-adjusted? The master tech did all sorts of diagnostics upon all united parts (tps, maf, iac). $100-200 all mature I agree to it do the dealer for diagnostics.. upon going problems are in reality count up. I m undecided to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason


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I did re-check them tho. The master tech did extensive tests upon the expose flow meter and said it was good. in the manner of I unplug it and govern the motor, the car runs brusque and at 850ish. I can only guess that my new rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much direct in the rotate of rpm though? I think it unaided adjusts it concerning 1k..



Hello the TPS does have an effect upon switching the car into idle mode hence I'd suggest to make definite the throttle plate is 100% closed and not slightly ashore behind carbon. and then adjust the TPS suitably that the IDL glue is continuous to the E2 fasten as soon as the throttle is closed, and log on circuit following the throttle is just cracked. Don't badly affect virtually any voltages, the IDL get into is the truly important one.



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