Where do the iac sensor is on the engine of a 2.7 Toyota quitim petrol

SAE/ASE NAME IAC,
1ZZ-FE And 2ZZ-GE Engines????????????????? HUNT # 10,005

IN THE AIR FILTER PIPE TO ENIGINE
NO ENGINE OR VIN TOLD SO EXACT ANSWERS ARE HARD.
usa SPEC, CAR OR NOT?
I ONLY DO USA SPEC. CARS.
THIS CAR THE IAT IS PART OF THE MAF SENSOR
THE SERVICE MANUAL SAID SO.
2500 OHMS 68F TEMP AND 2 TIMES THAT AT 32F.

no,such thing, the PCM controls idle 100% at all times hot.
when cold some have thermal IAC that runs up to 150f and then PCM takes control via ISC.
this is by uSA laws EPA, here but outside, I am clueless.(so many engine me too lazy to study)
our 1.6L and 1.8L has a dual IAC, (iac and isc all in one)
a thermal IAC and and electric PCM controled ISC
see water pipe pair is IAC
a vacuum leak sure can overwhelm any IAC made.
yes simply cleaning any stuck IAC can fix it.
yes the TV valve in TB stuck open packed up carbon
sure will make idle fail hard !"throttle valve" or stuck throttle cable.
no engine told at all or VIN.
but
sold world wide with
Petrol:
1295 cc 2E I4
1331 cc 4E-FE I4
1452 cc 3E I4 (Van)
1496 cc 5E-FE I4 (Van)
1498 cc 5A-FE I4
1587 cc 4A-FE/4A-GE I4
1587 cc 4A-GZE SC I4
1762 cc 7A-FE I4
Diesel:
1973 cc 2C I4
2184 cc 3C-E I4
---------------------------------------
$62 a pop. iAC.
mounts to bottom of TB
scan the PCM see if idle switch or TPS idle fails.

TOYOTA maker.
Toyota Land Cruiser Prado<<<<<this car?
Gen 3 Cruiser. with 4 petrol engines then.
no country told and is not USA car. we know that, but where? first sold
or VIN/
no engine told v6 size? 3.4 or 4.0L V6????????
wiki says the 3RZ-FE engine<<<< this?.for 2004
my guess ,is huge vacuum leaks.from lots of hoses even brake booster Vac leaks or hose never connected first.
IAC stuck open
TV stuck open on TB or gunked open
cutting out means stalling or just spark misfiring/?

getting too much fuel ,proved how? just RPM???????
the engine uses AIR, and this are he EFI adds fuel to mach air. mass.
that is how EFI works (be it mAF or MAP based)
online searching snows MAF sensor part of the TB.
some cars have idle only mAP sensor, but we have no books on this enigine.
let me explain MAF. mass air flow sensors
it measures ever microgram of air sucked in to the engine
the MAF tells the PCM this and PCM injects on mass air flow measured.
if you have any kind of vacuum leak the engine goes lean and slows DOWN LEAN BUT NOT IN COLD ENGINE STARTUP ENRICH MODE.

but not all engines witH MAF, SOME HAVE AND IDLE ONLY MAP SENSOR THAT IF VACUUM LEAKS HAPPEN THE ENGINE SCREAMS
KNOWING these to things, vacuum leaks
or in the MAF world UNMETerED air flow leaks.must be repaired.
all vacuum leaks are bad. besides, IAC allowed.

Mark, IAC (Idle Air Control Valve), If engine is idling too fast, problem may not be the idle speed control system, but an engine vacuum leak. Check for vacuum leaks first to rule this possibility out. Also on your Toyota low coolant, air in the cooling system can cause the valve not to operate properly as I believe coolant has to run through valve for it to operate correctly. Fill/bleed air from cooling system. Check the attached links,instruction and guides, Good luck
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Idle Air Control Valve Toyota Nation Forum Toyota Car and Truck Forums
Troubleshoot Idle Speed Control System
Has Anyone Cleaned Their IAC Idle Air Control Valve Toyota Nation Forum...

CHECK IAC SENSOR.

Clean the Mass air flow sensor, the throttle body(inside it as best you can), and the idle air control motor. Brake clean works good. Just spray the MAF, and use a toothbrush on the throttle body and IAC motor. Clean the back side of the throttle plate and where they seat.

do your car have an oil control valve if so check it

h0m0

CHECK OR TRY REPLACING THE FUEL FILTER, CHECK SPARK PLUG CONDITION,INJECTORS AND THROTTLE BODY MY NEED SERVICING, A FAULT IDLE AIR CONTROL SENSOR (IAC) MAY ALSO BE AT FAULT.

just besides the air filter over the air intake there is small screw rotate it anticlockwise and see if the rpm comes down or else change the iac (idle air control motor) immediately.