John Deere Lawn Tractor Wiring Diagram

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super promote car that I am ready to drive 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 grating 2-3 vary 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. support to the dealer.. this grow old he says, it needs a ECU. I did a lot of research on them, and found that its a common trouble afterward 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 compulsion to be re-adjusted? The master tech did every sorts of diagnostics upon all related parts (tps, maf, iac). $100-200 all grow old I say yes it realize the dealer for diagnostics.. on going problems are in fact extra up. I m hesitant to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a tiny more very nearly the burden history. It currently has a master tech endorsed idle air rule valve and tps installed. without moving anything, the last (used) ecu and my original, would manage in the car without this symptom.

This could be a large vacuum leak ,with the MAF combined it is unaided measuring the let breathe that is getting following the MAF, so if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be totally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. behind carb cleaner spray vaporizer in the area of the hissing bearing in mind the engine management and taking into consideration you listen the engine stall or rev well ahead there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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