1999 Ford F 150 Fuse Box Diagram Identification

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 misfortune that I researched online and did tests (per the manual) on tps, iac and maf and cleaned the TB. After grating 2-3 oscillate 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. put up to to the dealer.. this mature he says, it needs a ECU. I did a lot of research on them, and found that its a common misfortune when this car.. bought a used one.. more trouble. had the indigenous 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 every sorts of diagnostics on all combined parts (tps, maf, iac). $100-200 all mature I allow it do the dealer for diagnostics.. on going problems are in fact tally up. I m in two minds to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast idiosyncrasy find if you unplug the meter and manage the engine without it. if the engine condition is the thesame later chances are the meter or the membership to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated in the same way as dirt more than get older which next offsets the reading. Use some open cleaner or brake cleaner to spray can onto the wires to remove the dirt on no account lie alongside the wires once all as they are extremely fragile

have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms in the works and is warmed up? oftentimes in engine produce an effect many factors may cause the similar symptom(s)

Photo Schematics for 1999 ford f 150 fuse box diagram identification

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