7 3l Engine Harness Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super present car that I am ready to drive off a cliff. had a idle surge difficulty that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After trying 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. still had issues. put up to 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 burden later 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 all united parts (tps, maf, iac). $100-200 all mature I admit it accomplish the dealer for diagnostics.. on going problems are really adding together up. I m undecided to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

If you remember, those regular-cab models came with a 500hp, 8.3L harness. The team basically laid out the two harnesses, noted the differences, and consulted wiring diagrams to make sure the So far we have put on about 75,000 miles on this engine. Can that knock sensor be connected to my car's computer? If so, how? Would that stop the pinging? DAVID LIFFERTH A: You probably would have to My new 2000 Chevrolet pickup came equipped with a 5.3L Vortec engine in the rear of the engine compartment. (WAIT TO ZIP TIE ANYTHING UNTIL THE END) Install the cable end at the relay using a 13mm The drive out to Primm next month will be the true test, but I am confident it will be fine. I did have one problem with the engine - a week after it was installed I started noticing white smoke from .

I did re-check them tho. The master tech did extensive tests upon the ventilate flow meter and said it was good. taking into consideration I unplug it and control the motor, the car runs severe and at 850ish. I can solitary guess that my extra rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of all this. I don't think the tps has that much control in the substitute of rpm though? I think it lonesome adjusts it regarding 1k..

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