7 3 Powerstroke 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 difficulty that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After frustrating 2-3 exchange 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 mature he says, it needs a ECU. I did a lot of research upon them, and found that its a common difficulty afterward 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 infatuation to be re-adjusted? The master tech did all sorts of diagnostics on every linked parts (tps, maf, iac). $100-200 every epoch I undertake it realize the dealer for diagnostics.. on going problems are truly addendum up. I m in two minds to adjoin the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Its with worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a in poor health pump will every consequences in insufficient fuel beast delivered to the engine. Might moreover be worth cleaning out the idle zeal direct motor / valve as these get clogged happening similar to carbon and some brake cleaner washed through helps free things off.

Hello the TPS does have an effect upon switching the car into idle mode appropriately I'd recommend to create definite the throttle plate is 100% closed and not slightly stranded as soon as carbon. and then familiarize the TPS as a result that the IDL fasten is continuous to the E2 fix later than the throttle is closed, and contact circuit past the throttle is just cracked. Don't trouble virtually any voltages, the IDL admittance is the in point of fact important one.

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