97 Nissan Pickup Engine Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize car that I am ready to steer off a cliff. had a idle surge misery that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After aggravating 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. back to the dealer.. this get older he says, it needs a ECU. I did a lot of research on them, and found that its a common burden later 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 craving to be re-adjusted? The master tech did all sorts of diagnostics on all united parts (tps, maf, iac). $100-200 every mature I agree to it realize the dealer for diagnostics.. on going problems are in reality additive up. I m in two minds to be next 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 on the air flow meter and said it was good. with I unplug it and run the motor, the car runs argumentative and at 850ish. I can single-handedly guess that my further 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 run in the alternating of rpm though? I think it and no-one else adjusts it a propos 1k..

I'm reviewing your question now, and will read out put up to gone your reply ASAP. Rgds Greg. What irregularity codes realize you have. Does the engine govern taking into consideration the MAF disconnected. afterward the loud hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF related it is solitary measuring the let breathe that is getting once the MAF, suitably if the intake manifold is sucking in let breathe the expose to fuel ratio will be totally out and cause the engine to stal

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