ΰεμιι αλμ ζΰϊ ξιωδε ιλεμ μςζεψ αςπιιο?
μΰηψ δημτϊ χιθ ΰθξιν χεξτμθ+πιχειι τιζι ιρεγι αςζψϊ ρτψιι χψαεψθεψιν ερξψθεθ ωμ δηιιωπιν ωςμιδ λβεο δξπες φςγιν εδtps ,μΰηψ δψλαϊδ μξχεξδ ςμ ρςτϊ διπιχδ εηιαεψ λμ δχεπχθεψιν δηωξμιιν+φιπεψεϊ δεεΰχεν δξπες ΰξεψ μδπις αξλδ ψΰωεπδ αΰετο "ςβεμ" ΰε ωδξφςψϊ ζχεχδ μ"ΰϊηεμ" ξηγω ς"ι δξηωα εςχα ζδ ιδιε χωιιν αδπςδ ΰε αιιφεα δξπες αρψχ?
ΰεμιι αλμ ζΰϊ ξιωδε ιλεμ μςζεψ αςπιιο?
γιαψϊι λψβς ςν ξιωδε ωξαιο ςπιιο χφϊ αϊηεν εδεραψ μι ωαξςψλϊ δζψχδ ηγ πχεγϊιϊ ΰιο φεψκ μαφς ωεν λιεεο ΰμΰ δξςψλϊ ςεωδ ψιρθ ςφξι ξεμ δξηωα αςϊ τϊιηϊ δρεειυ ατςν δψΰωεπδ ,δΰν ιω ΰξϊ αγαψιε ξδ γςϊλν?
εςεγ γαψ ωδεζλψ αωιηδ δεΰ ωαλμμ λξςθ εΰιο φεψκ αλμμ μαφς πιχειι μξφςψϊ ξλιεεο ωδδζψχδ ξϊαφςϊ ξςμ δτψτψ ελκ δεΰ ξϊπχδ λμ δζξο ς"ι δγμχ, ιω δβιεο αϊιΰεψιδ δζΰϊ?
ΰωξη μωξες ςεγ γιςεϊ αςπιιο ξαςμιι πιριεο
ιω μλεεο ΰϊ δ tps εμΰτρ ΰϊ ξπες δφςγν
ΰικ ξΰτριν εξλεεπιν ΰϊ δηιιωπιν ψχ αξερκ ςν δφιεγ δξϊΰιν?
αλγι μΰτρ ΰϊ ξπες δφςγιν ΰϊδ ξχφψ αχεπχθεψ γιΰβπεζδ ΰϊ a ε b
ξτςιμ ρεειυ εξηλδ γχδ αιπϊιιν μκ μλιεεο δαιϊ ξφςψϊ ΰϊδ φψικ μωξες ϊιχϊεχιν ,
τδ δξπες φςγιν πρβψ , λαδ ρεειυ πϊχ ΰϊ δχεπχθεψ ωμ δξπες φςγιν
ελεεο ΰϊ δθεψιν λξδ ωιεϊψ πξεκ λωδξπες ςγιιο ςεαγ ςβεμ , λαδ δρεειυ δεφΰ ΰϊ δχφψ(β'ξτψ)
δηζψ ΰϊ δχεπχθεψ ωμ ξπες δφςγιν εζδε ΰιτρϊ ΰεϊε ςλωιε ΰϊ ηιιωο ξφα δξφςψϊ
τεϊη 2 ΰμπιν ωμε μεχη ΰαεξθψ εαεγχ αιο δληεμ μωηεψ φψικ μδιεϊ ων ηφι εεμθ ΰϊδ ξωηχ ΰιϊε ιξπδ εωξΰμδ ξξω αςγιπεϊ , δεΰ μΰ ζζ δψαδ εξβις μξφα ωδεΰ πεϊο 0.55 εεμθ ωζδ δξφα δΰιγιΰμι , ρεβψ ΰϊ δΰμπιν εαεγχ ωωεα ωζδ μΰ δωϊπδ εζδε λιεεπϊ .
ςλωιε ξεξμυ μδεφιΰ ΰϊ δτιεζ ωμ δξηωα εμηλεϊ ΰιζδ λξδ γχεϊ .
ΰπι ηεωα ωθςιϊι εξγεαψ αηξω εεμθ .
To establish minimum air, the idle speed must be set first. The idle speed screw is sealed with a cap from the factory. This should be removed by removing the throttle body and using an awl to pry the plug off. If this seems scary, have it done. Its not difficult but its not worth risking damage to the throttle body or human flesh to remove the plug. Once the plug has been removed, reinstall the throttle body.
Assuming the idle speed screw is accessible and the throttle body is installed, jumper pins A&B on the ALDL (Assembly Line Data Link) connector under the dash. Pins A&B are on the upper-right-hand side. These are the same two pins to jumper to read codes from the ECM. Now turn the key on (the Check Engine light should be lit) and leave the key on for at least 30 seconds. The computer will extend the IAC plunger all the way out to allow adjustment of the idle speed.
After the 30 second wait, unplug the IAC (square 4-pin connector on the throttle body) WHILE THE KEY IS STILL ON. This prevents the ECM from adjusting the idle speed while you make your adjustments.
Block the drive wheels, set the emergency brake, and start the engine. Set the idle speed by adjusting the idle speed screw. The engine should be at operating temperature for this. The exact setting is on the emissions label on the radiator shroud, but in general, the idle speed should be about 500 RPM in Drive, 700 in Park / Neutral, or if you have a manual transmission, somewhere between 600-800 RPM. Remember that the truck is running during this adjustment, so stay clear of the fan, and make sure it cant roll or otherwise be put into gear while this is done.
Once the minimum idle speed is set, turn the engine off, reconnect the IAC, and remove the jumper from the ALDL connector. The TPS minimum voltage must now be set. Turning the idle-speed screw may have moved the TPS idle voltage away from the specification, so it should be adjusted next.
Connect a voltmeter between pins A (usually dark blue) and B (usually black, or black/pink) of the TPS, and turn the key on. Dont start the engine. Loosen the two torx screws holding the TPS in place, but dont remove them. Rotate the TPS until the voltmeter reads between 0.45 and 0.55 volts, with 0.50 being ideal. Tighten the mounting screws (carefully, they thread into soft aluminum) and re-check the voltage to make sure its still within range.
Thats it. After the procedure is done once, its easy to remember and do. I hope this helps.
ωξψε ςμ χωψ